21016335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1129}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 36123840

約数和(自身を除く): 15107505

約数列:

[1, 3, 5, 15, 17, 51, 73, 85, 219, 255, 365, 1095, 1129, 1241, 3387, 3723, 5645, 6205, 16935, 18615, 19193, 57579, 82417, 95965, 247251, 287895, 412085, 1236255, 1401089, 4203267, 7005445, 21016335]

約数ペア:

[(1, 21016335), (3, 7005445), (5, 4203267), (15, 1401089), (17, 1236255), (51, 412085), (73, 287895), (85, 247251), (219, 95965), (255, 82417), (365, 57579), (1095, 19193), (1129, 18615), (1241, 16935), (3387, 6205), (3723, 5645)]