21228790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3271}}^1$

素因数の和:3348

約数の個数: 32

約数和(自身を含む): 42405120

約数和(自身を除く): 21176330

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 295, 590, 649, 1298, 3245, 3271, 6490, 6542, 16355, 32710, 35981, 71962, 179905, 192989, 359810, 385978, 964945, 1929890, 2122879, 4245758, 10614395, 21228790]

約数ペア:

[(1, 21228790), (2, 10614395), (5, 4245758), (10, 2122879), (11, 1929890), (22, 964945), (55, 385978), (59, 359810), (110, 192989), (118, 179905), (295, 71962), (590, 35981), (649, 32710), (1298, 16355), (3245, 6542), (3271, 6490)]