21408952

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{379}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 42134400

約数和(自身を除く): 20725448

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 307, 379, 614, 758, 1228, 1516, 2456, 3032, 7061, 8717, 14122, 17434, 28244, 34868, 56488, 69736, 116353, 232706, 465412, 930824, 2676119, 5352238, 10704476, 21408952]

約数ペア:

[(1, 21408952), (2, 10704476), (4, 5352238), (8, 2676119), (23, 930824), (46, 465412), (92, 232706), (184, 116353), (307, 69736), (379, 56488), (614, 34868), (758, 28244), (1228, 17434), (1516, 14122), (2456, 8717), (3032, 7061)]