21543665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1039}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 9905935

約数列:

[1, 5, 11, 13, 29, 55, 65, 143, 145, 319, 377, 715, 1039, 1595, 1885, 4147, 5195, 11429, 13507, 20735, 30131, 57145, 67535, 148577, 150655, 331441, 391703, 742885, 1657205, 1958515, 4308733, 21543665]

約数ペア:

[(1, 21543665), (5, 4308733), (11, 1958515), (13, 1657205), (29, 742885), (55, 391703), (65, 331441), (143, 150655), (145, 148577), (319, 67535), (377, 57145), (715, 30131), (1039, 20735), (1595, 13507), (1885, 11429), (4147, 5195)]