51717771

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1721}}^1$

素因数の和:1793

約数の個数: 40

約数和(自身を含む): 90012384

約数和(自身を除く): 38294613

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 1113, 1431, 1721, 3339, 4293, 5163, 10017, 12047, 15489, 30051, 36141, 46467, 91213, 108423, 139401, 273639, 325269, 638491, 820917, 975807, 1915473, 2462751, 5746419, 7388253, 17239257, 51717771]

約数ペア:

[(1, 51717771), (3, 17239257), (7, 7388253), (9, 5746419), (21, 2462751), (27, 1915473), (53, 975807), (63, 820917), (81, 638491), (159, 325269), (189, 273639), (371, 139401), (477, 108423), (567, 91213), (1113, 46467), (1431, 36141), (1721, 30051), (3339, 15489), (4293, 12047), (5163, 10017)]