21574605

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 39739392

約数和(自身を除く): 18164787

約数列:

[1, 3, 5, 13, 15, 31, 39, 43, 65, 83, 93, 129, 155, 195, 215, 249, 403, 415, 465, 559, 645, 1079, 1209, 1245, 1333, 1677, 2015, 2573, 2795, 3237, 3569, 3999, 5395, 6045, 6665, 7719, 8385, 10707, 12865, 16185, 17329, 17845, 19995, 33449, 38595, 46397, 51987, 53535, 86645, 100347, 110639, 139191, 167245, 231985, 259935, 331917, 501735, 553195, 695955, 1438307, 1659585, 4314921, 7191535, 21574605]

約数ペア:

[(1, 21574605), (3, 7191535), (5, 4314921), (13, 1659585), (15, 1438307), (31, 695955), (39, 553195), (43, 501735), (65, 331917), (83, 259935), (93, 231985), (129, 167245), (155, 139191), (195, 110639), (215, 100347), (249, 86645), (403, 53535), (415, 51987), (465, 46397), (559, 38595), (645, 33449), (1079, 19995), (1209, 17845), (1245, 17329), (1333, 16185), (1677, 12865), (2015, 10707), (2573, 8385), (2795, 7719), (3237, 6665), (3569, 6045), (3999, 5395)]