21844720

素因数分解:

$2^4\times 5^1\times {\mathrm{273059}}^1$

素因数の和:273072

約数の個数: 20

約数和(自身を含む): 50789160

約数和(自身を除く): 28944440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273059, 546118, 1092236, 1365295, 2184472, 2730590, 4368944, 5461180, 10922360, 21844720]

約数ペア:

[(1, 21844720), (2, 10922360), (4, 5461180), (5, 4368944), (8, 2730590), (10, 2184472), (16, 1365295), (20, 1092236), (40, 546118), (80, 273059)]