21798064

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{3331}}^1$

素因数の和:3748

約数の個数: 20

約数和(自身を含む): 42349720

約数和(自身を除く): 20551656

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 3331, 6544, 6662, 13324, 26648, 53296, 1362379, 2724758, 5449516, 10899032, 21798064]

約数ペア:

[(1, 21798064), (2, 10899032), (4, 5449516), (8, 2724758), (16, 1362379), (409, 53296), (818, 26648), (1636, 13324), (3272, 6662), (3331, 6544)]