21408728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{8389}}^1$

素因数の和:8435

約数の個数: 32

約数和(自身を含む): 45306000

約数和(自身を除く): 23897272

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 232, 319, 638, 1276, 2552, 8389, 16778, 33556, 67112, 92279, 184558, 243281, 369116, 486562, 738232, 973124, 1946248, 2676091, 5352182, 10704364, 21408728]

約数ペア:

[(1, 21408728), (2, 10704364), (4, 5352182), (8, 2676091), (11, 1946248), (22, 973124), (29, 738232), (44, 486562), (58, 369116), (88, 243281), (116, 184558), (232, 92279), (319, 67112), (638, 33556), (1276, 16778), (2552, 8389)]