19897790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3413}}^1$

素因数の和:3484

約数の個数: 32

約数和(自身を含む): 39820896

約数和(自身を除く): 19923106

約数列:

[1, 2, 5, 10, 11, 22, 53, 55, 106, 110, 265, 530, 583, 1166, 2915, 3413, 5830, 6826, 17065, 34130, 37543, 75086, 180889, 187715, 361778, 375430, 904445, 1808890, 1989779, 3979558, 9948895, 19897790]

約数ペア:

[(1, 19897790), (2, 9948895), (5, 3979558), (10, 1989779), (11, 1808890), (22, 904445), (53, 375430), (55, 361778), (106, 187715), (110, 180889), (265, 75086), (530, 37543), (583, 34130), (1166, 17065), (2915, 6826), (3413, 5830)]