18997636

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 40715136

約数和(自身を除く): 21717500

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 107, 119, 214, 238, 373, 428, 476, 746, 749, 1492, 1498, 1819, 2611, 2996, 3638, 5222, 6341, 7276, 10444, 12682, 12733, 25364, 25466, 39911, 44387, 50932, 79822, 88774, 159644, 177548, 279377, 558754, 678487, 1117508, 1356974, 2713948, 4749409, 9498818, 18997636]

約数ペア:

[(1, 18997636), (2, 9498818), (4, 4749409), (7, 2713948), (14, 1356974), (17, 1117508), (28, 678487), (34, 558754), (68, 279377), (107, 177548), (119, 159644), (214, 88774), (238, 79822), (373, 50932), (428, 44387), (476, 39911), (746, 25466), (749, 25364), (1492, 12733), (1498, 12682), (1819, 10444), (2611, 7276), (2996, 6341), (3638, 5222)]