21803680

素因数分解:

$2^5\times 5^1\times {\mathrm{136273}}^1$

素因数の和:136288

約数の個数: 24

約数和(自身を含む): 51511572

約数和(自身を除く): 29707892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136273, 272546, 545092, 681365, 1090184, 1362730, 2180368, 2725460, 4360736, 5450920, 10901840, 21803680]

約数ペア:

[(1, 21803680), (2, 10901840), (4, 5450920), (5, 4360736), (8, 2725460), (10, 2180368), (16, 1362730), (20, 1090184), (32, 681365), (40, 545092), (80, 272546), (160, 136273)]