1780051

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:682

約数の個数: 16

約数和(自身を含む): 2265088

約数和(自身を除く): 485037

約数列:

[1, 7, 13, 31, 91, 217, 403, 631, 2821, 4417, 8203, 19561, 57421, 136927, 254293, 1780051]

約数ペア:

[(1, 1780051), (7, 254293), (13, 136927), (31, 57421), (91, 19561), (217, 8203), (403, 4417), (631, 2821)]