21001408

素因数分解:

$2^6\times {\mathrm{239}}^1\times {\mathrm{1373}}^1$

素因数の和:1624

約数の個数: 28

約数和(自身を含む): 41879520

約数和(自身を除く): 20878112

約数列:

[1, 2, 4, 8, 16, 32, 64, 239, 478, 956, 1373, 1912, 2746, 3824, 5492, 7648, 10984, 15296, 21968, 43936, 87872, 328147, 656294, 1312588, 2625176, 5250352, 10500704, 21001408]

約数ペア:

[(1, 21001408), (2, 10500704), (4, 5250352), (8, 2625176), (16, 1312588), (32, 656294), (64, 328147), (239, 87872), (478, 43936), (956, 21968), (1373, 15296), (1912, 10984), (2746, 7648), (3824, 5492)]