21125056

素因数分解:

$2^6\times {\mathrm{71}}^1\times {\mathrm{4649}}^1$

素因数の和:4732

約数の個数: 28

約数和(自身を含む): 42519600

約数和(自身を除く): 21394544

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 142, 284, 568, 1136, 2272, 4544, 4649, 9298, 18596, 37192, 74384, 148768, 297536, 330079, 660158, 1320316, 2640632, 5281264, 10562528, 21125056]

約数ペア:

[(1, 21125056), (2, 10562528), (4, 5281264), (8, 2640632), (16, 1320316), (32, 660158), (64, 330079), (71, 297536), (142, 148768), (284, 74384), (568, 37192), (1136, 18596), (2272, 9298), (4544, 4649)]