21056130

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7547}}^1$

素因数の和:7591

約数の個数: 48

約数和(自身を含む): 56519424

約数和(自身を除く): 35463294

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7547, 15094, 22641, 37735, 45282, 67923, 75470, 113205, 135846, 226410, 233957, 339615, 467914, 679230, 701871, 1169785, 1403742, 2105613, 2339570, 3509355, 4211226, 7018710, 10528065, 21056130]

約数ペア:

[(1, 21056130), (2, 10528065), (3, 7018710), (5, 4211226), (6, 3509355), (9, 2339570), (10, 2105613), (15, 1403742), (18, 1169785), (30, 701871), (31, 679230), (45, 467914), (62, 339615), (90, 233957), (93, 226410), (155, 135846), (186, 113205), (279, 75470), (310, 67923), (465, 45282), (558, 37735), (930, 22641), (1395, 15094), (2790, 7547)]