1218889

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 16

約数和(自身を含む): 1483776

約数和(自身を除く): 264887

約数列:

[1, 7, 31, 41, 137, 217, 287, 959, 1271, 4247, 5617, 8897, 29729, 39319, 174127, 1218889]

約数ペア:

[(1, 1218889), (7, 174127), (31, 39319), (41, 29729), (137, 8897), (217, 5617), (287, 4247), (959, 1271)]