19338921

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7487}}^1$

素因数の和:7541

約数の個数: 24

約数和(自身を含む): 32707584

約数和(自身を除く): 13368663

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7487, 22461, 52409, 67383, 157227, 306967, 471681, 920901, 2148769, 2762703, 6446307, 19338921]

約数ペア:

[(1, 19338921), (3, 6446307), (7, 2762703), (9, 2148769), (21, 920901), (41, 471681), (63, 306967), (123, 157227), (287, 67383), (369, 52409), (861, 22461), (2583, 7487)]