20178954439

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1\times {\mathrm{2999}}^1$

素因数の和:3439

約数の個数: 32

約数和(自身を含む): 24054912000

約数和(自身を除く): 3875957561

約数列:

[1, 7, 37, 83, 259, 313, 581, 2191, 2999, 3071, 11581, 20993, 21497, 25979, 81067, 110963, 181853, 248917, 776741, 938687, 961223, 1742419, 6570809, 6728561, 9209929, 34731419, 64469503, 77911021, 243119933, 545377147, 2882707777, 20178954439]

約数ペア:

[(1, 20178954439), (7, 2882707777), (37, 545377147), (83, 243119933), (259, 77911021), (313, 64469503), (581, 34731419), (2191, 9209929), (2999, 6728561), (3071, 6570809), (11581, 1742419), (20993, 961223), (21497, 938687), (25979, 776741), (81067, 248917), (110963, 181853)]