21155108

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5573}}^1$

素因数の和:5663

約数の個数: 24

約数和(自身を含む): 40422648

約数和(自身を除く): 19267540

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 5573, 11146, 22292, 72449, 144898, 289796, 406829, 813658, 1627316, 5288777, 10577554, 21155108]

約数ペア:

[(1, 21155108), (2, 10577554), (4, 5288777), (13, 1627316), (26, 813658), (52, 406829), (73, 289796), (146, 144898), (292, 72449), (949, 22292), (1898, 11146), (3796, 5573)]