19721150

素因数分解:

$2^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{2879}}^1$

素因数の和:3028

約数の個数: 24

約数和(自身を含む): 36961920

約数和(自身を除く): 17240770

約数列:

[1, 2, 5, 10, 25, 50, 137, 274, 685, 1370, 2879, 3425, 5758, 6850, 14395, 28790, 71975, 143950, 394423, 788846, 1972115, 3944230, 9860575, 19721150]

約数ペア:

[(1, 19721150), (2, 9860575), (5, 3944230), (10, 1972115), (25, 788846), (50, 394423), (137, 143950), (274, 71975), (685, 28790), (1370, 14395), (2879, 6850), (3425, 5758)]