20640894

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{853}}^1$

素因数の和:1004

約数の個数: 32

約数和(自身を含む): 42836640

約数和(自身を除く): 22195746

約数列:

[1, 2, 3, 6, 37, 74, 109, 111, 218, 222, 327, 654, 853, 1706, 2559, 4033, 5118, 8066, 12099, 24198, 31561, 63122, 92977, 94683, 185954, 189366, 278931, 557862, 3440149, 6880298, 10320447, 20640894]

約数ペア:

[(1, 20640894), (2, 10320447), (3, 6880298), (6, 3440149), (37, 557862), (74, 278931), (109, 189366), (111, 185954), (218, 94683), (222, 92977), (327, 63122), (654, 31561), (853, 24198), (1706, 12099), (2559, 8066), (4033, 5118)]