18688419

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{373}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 28588560

約数和(自身を除く): 9900141

約数列:

[1, 3, 9, 19, 57, 171, 293, 373, 879, 1119, 2637, 3357, 5567, 7087, 16701, 21261, 50103, 63783, 109289, 327867, 983601, 2076491, 6229473, 18688419]

約数ペア:

[(1, 18688419), (3, 6229473), (9, 2076491), (19, 983601), (57, 327867), (171, 109289), (293, 63783), (373, 50103), (879, 21261), (1119, 16701), (2637, 7087), (3357, 5567)]