21965015380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{10343}}^1$

素因数の和:10574

約数の個数: 144

約数和(自身を含む): 58838161536

約数和(自身を除く): 36873146156

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 197, 220, 245, 308, 385, 394, 490, 539, 770, 788, 980, 985, 1078, 1379, 1540, 1970, 2156, 2167, 2695, 2758, 3940, 4334, 5390, 5516, 6895, 8668, 9653, 10343, 10780, 10835, 13790, 15169, 19306, 20686, 21670, 27580, 30338, 38612, 41372, 43340, 48265, 51715, 60676, 72401, 75845, 96530, 103430, 106183, 113773, 144802, 151690, 193060, 206860, 212366, 227546, 289604, 303380, 362005, 424732, 455092, 506807, 530915, 568865, 724010, 796411, 1013614, 1061830, 1137730, 1448020, 1592822, 2027228, 2037571, 2123660, 2275460, 2534035, 3185644, 3982055, 4075142, 5068070, 5574877, 7964110, 8150284, 10136140, 10187855, 11149754, 14262997, 15928220, 20375710, 22299508, 22413281, 27874385, 28525994, 40751420, 44826562, 55748770, 57051988, 71314985, 89653124, 99840979, 111497540, 112066405, 142629970, 156892967, 199681958, 224132810, 285259940, 313785934, 399363916, 448265620, 499204895, 627571868, 784464835, 998409790, 1098250769, 1568929670, 1996819580, 2196501538, 3137859340, 4393003076, 5491253845, 10982507690, 21965015380]

約数ペア:

[(1, 21965015380), (2, 10982507690), (4, 5491253845), (5, 4393003076), (7, 3137859340), (10, 2196501538), (11, 1996819580), (14, 1568929670), (20, 1098250769), (22, 998409790), (28, 784464835), (35, 627571868), (44, 499204895), (49, 448265620), (55, 399363916), (70, 313785934), (77, 285259940), (98, 224132810), (110, 199681958), (140, 156892967), (154, 142629970), (196, 112066405), (197, 111497540), (220, 99840979), (245, 89653124), (308, 71314985), (385, 57051988), (394, 55748770), (490, 44826562), (539, 40751420), (770, 28525994), (788, 27874385), (980, 22413281), (985, 22299508), (1078, 20375710), (1379, 15928220), (1540, 14262997), (1970, 11149754), (2156, 10187855), (2167, 10136140), (2695, 8150284), (2758, 7964110), (3940, 5574877), (4334, 5068070), (5390, 4075142), (5516, 3982055), (6895, 3185644), (8668, 2534035), (9653, 2275460), (10343, 2123660), (10780, 2037571), (10835, 2027228), (13790, 1592822), (15169, 1448020), (19306, 1137730), (20686, 1061830), (21670, 1013614), (27580, 796411), (30338, 724010), (38612, 568865), (41372, 530915), (43340, 506807), (48265, 455092), (51715, 424732), (60676, 362005), (72401, 303380), (75845, 289604), (96530, 227546), (103430, 212366), (106183, 206860), (113773, 193060), (144802, 151690)]