289479953

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1269

約数の個数: 32

約数和(自身を含む): 365690880

約数和(自身を除く): 76210927

約数列:

[1, 7, 19, 31, 61, 133, 217, 427, 589, 1151, 1159, 1891, 4123, 8057, 8113, 13237, 21869, 35681, 35929, 70211, 153083, 249767, 251503, 491477, 677939, 1334009, 2176541, 4745573, 9338063, 15235787, 41354279, 289479953]

約数ペア:

[(1, 289479953), (7, 41354279), (19, 15235787), (31, 9338063), (61, 4745573), (133, 2176541), (217, 1334009), (427, 677939), (589, 491477), (1151, 251503), (1159, 249767), (1891, 153083), (4123, 70211), (8057, 35929), (8113, 35681), (13237, 21869)]