16719715

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 21671280

約数和(自身を除く): 4951565

約数列:

[1, 5, 19, 59, 95, 157, 295, 361, 785, 1121, 1805, 2983, 5605, 9263, 14915, 21299, 46315, 56677, 106495, 175997, 283385, 879985, 3343943, 16719715]

約数ペア:

[(1, 16719715), (5, 3343943), (19, 879985), (59, 283385), (95, 175997), (157, 106495), (295, 56677), (361, 46315), (785, 21299), (1121, 14915), (1805, 9263), (2983, 5605)]