20489068

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1049}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 37926000

約数和(自身を除く): 17436932

約数列:

[1, 2, 4, 19, 38, 76, 257, 514, 1028, 1049, 2098, 4196, 4883, 9766, 19532, 19931, 39862, 79724, 269593, 539186, 1078372, 5122267, 10244534, 20489068]

約数ペア:

[(1, 20489068), (2, 10244534), (4, 5122267), (19, 1078372), (38, 539186), (76, 269593), (257, 79724), (514, 39862), (1028, 19931), (1049, 19532), (2098, 9766), (4196, 4883)]