21691670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 53089344

約数和(自身を除く): 31397674

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 121, 130, 143, 154, 182, 197, 242, 286, 385, 394, 455, 605, 715, 770, 847, 910, 985, 1001, 1210, 1379, 1430, 1573, 1694, 1970, 2002, 2167, 2561, 2758, 3146, 4235, 4334, 5005, 5122, 6895, 7865, 8470, 10010, 10835, 11011, 12805, 13790, 15169, 15730, 17927, 21670, 22022, 23837, 25610, 28171, 30338, 35854, 47674, 55055, 56342, 75845, 89635, 110110, 119185, 140855, 151690, 166859, 179270, 197197, 238370, 281710, 309881, 333718, 394394, 619762, 834295, 985985, 1549405, 1668590, 1971970, 2169167, 3098810, 4338334, 10845835, 21691670]

約数ペア:

[(1, 21691670), (2, 10845835), (5, 4338334), (7, 3098810), (10, 2169167), (11, 1971970), (13, 1668590), (14, 1549405), (22, 985985), (26, 834295), (35, 619762), (55, 394394), (65, 333718), (70, 309881), (77, 281710), (91, 238370), (110, 197197), (121, 179270), (130, 166859), (143, 151690), (154, 140855), (182, 119185), (197, 110110), (242, 89635), (286, 75845), (385, 56342), (394, 55055), (455, 47674), (605, 35854), (715, 30338), (770, 28171), (847, 25610), (910, 23837), (985, 22022), (1001, 21670), (1210, 17927), (1379, 15730), (1430, 15169), (1573, 13790), (1694, 12805), (1970, 11011), (2002, 10835), (2167, 10010), (2561, 8470), (2758, 7865), (3146, 6895), (4235, 5122), (4334, 5005)]