21142264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18481}}^1$

素因数の和:18511

約数の個数: 32

約数和(自身を含む): 46574640

約数和(自身を除く): 25432376

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18481, 36962, 73924, 147848, 203291, 240253, 406582, 480506, 813164, 961012, 1626328, 1922024, 2642783, 5285566, 10571132, 21142264]

約数ペア:

[(1, 21142264), (2, 10571132), (4, 5285566), (8, 2642783), (11, 1922024), (13, 1626328), (22, 961012), (26, 813164), (44, 480506), (52, 406582), (88, 240253), (104, 203291), (143, 147848), (286, 73924), (572, 36962), (1144, 18481)]