81317817

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{25309}}^1$

素因数の和:25342

約数の個数: 32

約数和(自身を含む): 145785600

約数和(自身を除く): 64467783

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 25309, 75927, 177163, 227781, 430253, 531489, 683343, 1290759, 1594467, 3011771, 3872277, 4783401, 9035313, 11616831, 27105939, 81317817]

約数ペア:

[(1, 81317817), (3, 27105939), (7, 11616831), (9, 9035313), (17, 4783401), (21, 3872277), (27, 3011771), (51, 1594467), (63, 1290759), (119, 683343), (153, 531489), (189, 430253), (357, 227781), (459, 177163), (1071, 75927), (3213, 25309)]