20928424

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12517}}^1$

素因数の和:12553

約数の個数: 32

約数和(自身を含む): 45064800

約数和(自身を除く): 24136376

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12517, 25034, 50068, 100136, 137687, 237823, 275374, 475646, 550748, 951292, 1101496, 1902584, 2616053, 5232106, 10464212, 20928424]

約数ペア:

[(1, 20928424), (2, 10464212), (4, 5232106), (8, 2616053), (11, 1902584), (19, 1101496), (22, 951292), (38, 550748), (44, 475646), (76, 275374), (88, 237823), (152, 137687), (209, 100136), (418, 50068), (836, 25034), (1672, 12517)]