51511257

素因数分解:

$3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{2039}}^1$

素因数の和:2453

約数の個数: 24

約数和(自身を含む): 85288320

約数和(自身を除く): 33777063

約数列:

[1, 3, 7, 9, 21, 63, 401, 1203, 2039, 2807, 3609, 6117, 8421, 14273, 18351, 25263, 42819, 128457, 817639, 2452917, 5723473, 7358751, 17170419, 51511257]

約数ペア:

[(1, 51511257), (3, 17170419), (7, 7358751), (9, 5723473), (21, 2452917), (63, 817639), (401, 128457), (1203, 42819), (2039, 25263), (2807, 18351), (3609, 14273), (6117, 8421)]