21666800

素因数分解:

$2^4\times 5^2\times {\mathrm{54167}}^1$

素因数の和:54185

約数の個数: 30

約数和(自身を含む): 52055448

約数和(自身を除く): 30388648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54167, 108334, 216668, 270835, 433336, 541670, 866672, 1083340, 1354175, 2166680, 2708350, 4333360, 5416700, 10833400, 21666800]

約数ペア:

[(1, 21666800), (2, 10833400), (4, 5416700), (5, 4333360), (8, 2708350), (10, 2166680), (16, 1354175), (20, 1083340), (25, 866672), (40, 541670), (50, 433336), (80, 270835), (100, 216668), (200, 108334), (400, 54167)]