21143512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11959}}^1$

素因数の和:11995

約数の個数: 32

約数和(自身を含む): 45208800

約数和(自身を除く): 24065288

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 11959, 23918, 47836, 95672, 155467, 203303, 310934, 406606, 621868, 813212, 1243736, 1626424, 2642939, 5285878, 10571756, 21143512]

約数ペア:

[(1, 21143512), (2, 10571756), (4, 5285878), (8, 2642939), (13, 1626424), (17, 1243736), (26, 813212), (34, 621868), (52, 406606), (68, 310934), (104, 203303), (136, 155467), (221, 95672), (442, 47836), (884, 23918), (1768, 11959)]