21898840

素因数分解:

$2^3\times 5^1\times {\mathrm{547471}}^1$

素因数の和:547482

約数の個数: 16

約数和(自身を含む): 49272480

約数和(自身を除く): 27373640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547471, 1094942, 2189884, 2737355, 4379768, 5474710, 10949420, 21898840]

約数ペア:

[(1, 21898840), (2, 10949420), (4, 5474710), (5, 4379768), (8, 2737355), (10, 2189884), (20, 1094942), (40, 547471)]