17969925

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:234

約数の個数: 48

約数和(自身を含む): 31426560

約数和(自身を除く): 13456635

約数列:

[1, 3, 5, 15, 25, 31, 59, 75, 93, 131, 155, 177, 295, 393, 465, 655, 775, 885, 1475, 1829, 1965, 2325, 3275, 4061, 4425, 5487, 7729, 9145, 9825, 12183, 20305, 23187, 27435, 38645, 45725, 60915, 101525, 115935, 137175, 193225, 239599, 304575, 579675, 718797, 1197995, 3593985, 5989975, 17969925]

約数ペア:

[(1, 17969925), (3, 5989975), (5, 3593985), (15, 1197995), (25, 718797), (31, 579675), (59, 304575), (75, 239599), (93, 193225), (131, 137175), (155, 115935), (177, 101525), (295, 60915), (393, 45725), (465, 38645), (655, 27435), (775, 23187), (885, 20305), (1475, 12183), (1829, 9825), (1965, 9145), (2325, 7729), (3275, 5487), (4061, 4425)]