21724720

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{613}}^1$

素因数の和:1069

約数の個数: 40

約数和(自身を含む): 50706576

約数和(自身を除く): 28981856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 613, 886, 1226, 1772, 2215, 2452, 3065, 3544, 4430, 4904, 6130, 7088, 8860, 9808, 12260, 17720, 24520, 35440, 49040, 271559, 543118, 1086236, 1357795, 2172472, 2715590, 4344944, 5431180, 10862360, 21724720]

約数ペア:

[(1, 21724720), (2, 10862360), (4, 5431180), (5, 4344944), (8, 2715590), (10, 2172472), (16, 1357795), (20, 1086236), (40, 543118), (80, 271559), (443, 49040), (613, 35440), (886, 24520), (1226, 17720), (1772, 12260), (2215, 9808), (2452, 8860), (3065, 7088), (3544, 6130), (4430, 4904)]