20458735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21881}}^1$

素因数の和:21914

約数の個数: 16

約数和(自身を含む): 28359072

約数和(自身を除く): 7900337

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 21881, 109405, 240691, 371977, 1203455, 1859885, 4091747, 20458735]

約数ペア:

[(1, 20458735), (5, 4091747), (11, 1859885), (17, 1203455), (55, 371977), (85, 240691), (187, 109405), (935, 21881)]