18693663

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:503

約数の個数: 24

約数和(自身を含む): 27011376

約数和(自身を除く): 8317713

約数列:

[1, 3, 19, 41, 57, 123, 361, 421, 779, 1083, 1263, 2337, 7999, 14801, 17261, 23997, 44403, 51783, 151981, 327959, 455943, 983877, 6231221, 18693663]

約数ペア:

[(1, 18693663), (3, 6231221), (19, 983877), (41, 455943), (57, 327959), (123, 151981), (361, 51783), (421, 44403), (779, 23997), (1083, 17261), (1263, 14801), (2337, 7999)]