16921940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{120871}}^1$

素因数の和:120887

約数の個数: 24

約数和(自身を含む): 40612992

約数和(自身を除く): 23691052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 120871, 241742, 483484, 604355, 846097, 1208710, 1692194, 2417420, 3384388, 4230485, 8460970, 16921940]

約数ペア:

[(1, 16921940), (2, 8460970), (4, 4230485), (5, 3384388), (7, 2417420), (10, 1692194), (14, 1208710), (20, 846097), (28, 604355), (35, 483484), (70, 241742), (140, 120871)]