21888680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49747}}^1$

素因数の和:49769

約数の個数: 32

約数和(自身を含む): 53727840

約数和(自身を除く): 31839160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49747, 99494, 198988, 248735, 397976, 497470, 547217, 994940, 1094434, 1989880, 2188868, 2736085, 4377736, 5472170, 10944340, 21888680]

約数ペア:

[(1, 21888680), (2, 10944340), (4, 5472170), (5, 4377736), (8, 2736085), (10, 2188868), (11, 1989880), (20, 1094434), (22, 994940), (40, 547217), (44, 497470), (55, 397976), (88, 248735), (110, 198988), (220, 99494), (440, 49747)]