20651685

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:877

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 14703195

約数列:

[1, 3, 5, 15, 17, 51, 85, 109, 255, 327, 545, 743, 1635, 1853, 2229, 3715, 5559, 9265, 11145, 12631, 27795, 37893, 63155, 80987, 189465, 242961, 404935, 1214805, 1376779, 4130337, 6883895, 20651685]

約数ペア:

[(1, 20651685), (3, 6883895), (5, 4130337), (15, 1376779), (17, 1214805), (51, 404935), (85, 242961), (109, 189465), (255, 80987), (327, 63155), (545, 37893), (743, 27795), (1635, 12631), (1853, 11145), (2229, 9265), (3715, 5559)]