18867995

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2969}}^1$

素因数の和:3046

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 5082085

約数列:

[1, 5, 31, 41, 155, 205, 1271, 2969, 6355, 14845, 92039, 121729, 460195, 608645, 3773599, 18867995]

約数ペア:

[(1, 18867995), (5, 3773599), (31, 608645), (41, 460195), (155, 121729), (205, 92039), (1271, 14845), (2969, 6355)]