21991416

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{22349}}^1$

素因数の和:22399

約数の個数: 32

約数和(自身を含む): 56322000

約数和(自身を除く): 34330584

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984, 22349, 44698, 67047, 89396, 134094, 178792, 268188, 536376, 916309, 1832618, 2748927, 3665236, 5497854, 7330472, 10995708, 21991416]

約数ペア:

[(1, 21991416), (2, 10995708), (3, 7330472), (4, 5497854), (6, 3665236), (8, 2748927), (12, 1832618), (24, 916309), (41, 536376), (82, 268188), (123, 178792), (164, 134094), (246, 89396), (328, 67047), (492, 44698), (984, 22349)]