21853480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49667}}^1$

素因数の和:49689

約数の個数: 32

約数和(自身を含む): 53641440

約数和(自身を除く): 31787960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49667, 99334, 198668, 248335, 397336, 496670, 546337, 993340, 1092674, 1986680, 2185348, 2731685, 4370696, 5463370, 10926740, 21853480]

約数ペア:

[(1, 21853480), (2, 10926740), (4, 5463370), (5, 4370696), (8, 2731685), (10, 2185348), (11, 1986680), (20, 1092674), (22, 993340), (40, 546337), (44, 496670), (55, 397336), (88, 248335), (110, 198668), (220, 99334), (440, 49667)]