21052568

素因数分解:

$2^3\times {\mathrm{521}}^1\times {\mathrm{5051}}^1$

素因数の和:5578

約数の個数: 16

約数和(自身を含む): 39557160

約数和(自身を除く): 18504592

約数列:

[1, 2, 4, 8, 521, 1042, 2084, 4168, 5051, 10102, 20204, 40408, 2631571, 5263142, 10526284, 21052568]

約数ペア:

[(1, 21052568), (2, 10526284), (4, 5263142), (8, 2631571), (521, 40408), (1042, 20204), (2084, 10102), (4168, 5051)]