21510830

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{691}}^1$

素因数の和:992

約数の個数: 32

約数和(自身を含む): 42450048

約数和(自身を除く): 20939218

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 283, 566, 691, 1382, 1415, 2830, 3113, 3455, 6226, 6910, 7601, 15202, 15565, 31130, 38005, 76010, 195553, 391106, 977765, 1955530, 2151083, 4302166, 10755415, 21510830]

約数ペア:

[(1, 21510830), (2, 10755415), (5, 4302166), (10, 2151083), (11, 1955530), (22, 977765), (55, 391106), (110, 195553), (283, 76010), (566, 38005), (691, 31130), (1382, 15565), (1415, 15202), (2830, 7601), (3113, 6910), (3455, 6226)]