21188168

素因数分解:

$2^3\times {\mathrm{659}}^1\times {\mathrm{4019}}^1$

素因数の和:4684

約数の個数: 16

約数和(自身を含む): 39798000

約数和(自身を除く): 18609832

約数列:

[1, 2, 4, 8, 659, 1318, 2636, 4019, 5272, 8038, 16076, 32152, 2648521, 5297042, 10594084, 21188168]

約数ペア:

[(1, 21188168), (2, 10594084), (4, 5297042), (8, 2648521), (659, 32152), (1318, 16076), (2636, 8038), (4019, 5272)]