28908789

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6229}}^1$

素因数の和:6269

約数の個数: 32

約数和(自身を含む): 50238720

約数和(自身を除く): 21329931

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 6229, 18687, 43603, 80977, 105893, 130809, 242931, 317679, 566839, 741251, 1376609, 1700517, 2223753, 4129827, 9636263, 28908789]

約数ペア:

[(1, 28908789), (3, 9636263), (7, 4129827), (13, 2223753), (17, 1700517), (21, 1376609), (39, 741251), (51, 566839), (91, 317679), (119, 242931), (221, 130809), (273, 105893), (357, 80977), (663, 43603), (1547, 18687), (4641, 6229)]