21590790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:158

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 39373050

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 29, 30, 39, 46, 58, 65, 69, 78, 83, 87, 115, 130, 138, 145, 166, 174, 195, 230, 249, 290, 299, 345, 377, 390, 415, 435, 498, 598, 667, 690, 754, 830, 870, 897, 1079, 1131, 1245, 1334, 1495, 1794, 1885, 1909, 2001, 2158, 2262, 2407, 2490, 2990, 3237, 3335, 3770, 3818, 4002, 4485, 4814, 5395, 5655, 5727, 6474, 6670, 7221, 8671, 8970, 9545, 10005, 10790, 11310, 11454, 12035, 14442, 16185, 17342, 19090, 20010, 24070, 24817, 26013, 28635, 31291, 32370, 36105, 43355, 49634, 52026, 55361, 57270, 62582, 72210, 74451, 86710, 93873, 110722, 124085, 130065, 148902, 156455, 166083, 187746, 248170, 260130, 276805, 312910, 332166, 372255, 469365, 553610, 719693, 744510, 830415, 938730, 1439386, 1660830, 2159079, 3598465, 4318158, 7196930, 10795395, 21590790]

約数ペア:

[(1, 21590790), (2, 10795395), (3, 7196930), (5, 4318158), (6, 3598465), (10, 2159079), (13, 1660830), (15, 1439386), (23, 938730), (26, 830415), (29, 744510), (30, 719693), (39, 553610), (46, 469365), (58, 372255), (65, 332166), (69, 312910), (78, 276805), (83, 260130), (87, 248170), (115, 187746), (130, 166083), (138, 156455), (145, 148902), (166, 130065), (174, 124085), (195, 110722), (230, 93873), (249, 86710), (290, 74451), (299, 72210), (345, 62582), (377, 57270), (390, 55361), (415, 52026), (435, 49634), (498, 43355), (598, 36105), (667, 32370), (690, 31291), (754, 28635), (830, 26013), (870, 24817), (897, 24070), (1079, 20010), (1131, 19090), (1245, 17342), (1334, 16185), (1495, 14442), (1794, 12035), (1885, 11454), (1909, 11310), (2001, 10790), (2158, 10005), (2262, 9545), (2407, 8970), (2490, 8671), (2990, 7221), (3237, 6670), (3335, 6474), (3770, 5727), (3818, 5655), (4002, 5395), (4485, 4814)]