18920615

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2663}}^1$

素因数の和:2711

約数の個数: 24

約数和(自身を含む): 27332640

約数和(自身を除く): 8412025

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 2663, 7105, 13315, 18641, 77227, 93205, 130487, 386135, 540589, 652435, 2702945, 3784123, 18920615]

約数ペア:

[(1, 18920615), (5, 3784123), (7, 2702945), (29, 652435), (35, 540589), (49, 386135), (145, 130487), (203, 93205), (245, 77227), (1015, 18641), (1421, 13315), (2663, 7105)]