28037735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{137}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 37587888

約数和(自身を除く): 9550153

約数列:

[1, 5, 11, 55, 61, 137, 305, 671, 685, 1507, 3355, 3721, 7535, 8357, 18605, 40931, 41785, 91927, 204655, 459635, 509777, 2548885, 5607547, 28037735]

約数ペア:

[(1, 28037735), (5, 5607547), (11, 2548885), (55, 509777), (61, 459635), (137, 204655), (305, 91927), (671, 41785), (685, 40931), (1507, 18605), (3355, 8357), (3721, 7535)]