21708741460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{15971}}^1$

素因数の和:16086

約数の個数: 144

約数和(自身を含む): 56590712640

約数和(自身を除く): 34881971180

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 73, 76, 95, 98, 133, 140, 146, 190, 196, 245, 266, 292, 365, 380, 490, 511, 532, 665, 730, 931, 980, 1022, 1330, 1387, 1460, 1862, 2044, 2555, 2660, 2774, 3577, 3724, 4655, 5110, 5548, 6935, 7154, 9310, 9709, 10220, 13870, 14308, 15971, 17885, 18620, 19418, 27740, 31942, 35770, 38836, 48545, 63884, 67963, 71540, 79855, 97090, 111797, 135926, 159710, 194180, 223594, 271852, 303449, 319420, 339815, 447188, 558985, 606898, 679630, 782579, 1117970, 1165883, 1213796, 1359260, 1517245, 1565158, 2124143, 2235940, 2331766, 3034490, 3130316, 3912895, 4248286, 4663532, 5829415, 6068980, 7825790, 8161181, 8496572, 10620715, 11658830, 14869001, 15651580, 16322362, 21241430, 22151777, 23317660, 29738002, 32644724, 40805905, 42482860, 44303554, 57128267, 59476004, 74345005, 81611810, 88607108, 110758885, 114256534, 148690010, 155062439, 163223620, 221517770, 228513068, 285641335, 297380020, 310124878, 443035540, 571282670, 620249756, 775312195, 1085437073, 1142565340, 1550624390, 2170874146, 3101248780, 4341748292, 5427185365, 10854370730, 21708741460]

約数ペア:

[(1, 21708741460), (2, 10854370730), (4, 5427185365), (5, 4341748292), (7, 3101248780), (10, 2170874146), (14, 1550624390), (19, 1142565340), (20, 1085437073), (28, 775312195), (35, 620249756), (38, 571282670), (49, 443035540), (70, 310124878), (73, 297380020), (76, 285641335), (95, 228513068), (98, 221517770), (133, 163223620), (140, 155062439), (146, 148690010), (190, 114256534), (196, 110758885), (245, 88607108), (266, 81611810), (292, 74345005), (365, 59476004), (380, 57128267), (490, 44303554), (511, 42482860), (532, 40805905), (665, 32644724), (730, 29738002), (931, 23317660), (980, 22151777), (1022, 21241430), (1330, 16322362), (1387, 15651580), (1460, 14869001), (1862, 11658830), (2044, 10620715), (2555, 8496572), (2660, 8161181), (2774, 7825790), (3577, 6068980), (3724, 5829415), (4655, 4663532), (5110, 4248286), (5548, 3912895), (6935, 3130316), (7154, 3034490), (9310, 2331766), (9709, 2235940), (10220, 2124143), (13870, 1565158), (14308, 1517245), (15971, 1359260), (17885, 1213796), (18620, 1165883), (19418, 1117970), (27740, 782579), (31942, 679630), (35770, 606898), (38836, 558985), (48545, 447188), (63884, 339815), (67963, 319420), (71540, 303449), (79855, 271852), (97090, 223594), (111797, 194180), (135926, 159710)]