16958420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20681}}^1$

素因数の和:20731

約数の個数: 24

約数和(自身を含む): 36483048

約数和(自身を除く): 19524628

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20681, 41362, 82724, 103405, 206810, 413620, 847921, 1695842, 3391684, 4239605, 8479210, 16958420]

約数ペア:

[(1, 16958420), (2, 8479210), (4, 4239605), (5, 3391684), (10, 1695842), (20, 847921), (41, 413620), (82, 206810), (164, 103405), (205, 82724), (410, 41362), (820, 20681)]