21552764

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4649}}^1$

素因数の和:4733

約数の個数: 24

約数和(自身を含む): 40362000

約数和(自身を除く): 18809236

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4636, 4649, 9298, 18596, 88331, 176662, 283589, 353324, 567178, 1134356, 5388191, 10776382, 21552764]

約数ペア:

[(1, 21552764), (2, 10776382), (4, 5388191), (19, 1134356), (38, 567178), (61, 353324), (76, 283589), (122, 176662), (244, 88331), (1159, 18596), (2318, 9298), (4636, 4649)]