19666953

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 29446560

約数和(自身を除く): 9779607

約数列:

[1, 3, 9, 43, 89, 129, 267, 387, 571, 801, 1713, 3827, 5139, 11481, 24553, 34443, 50819, 73659, 152457, 220977, 457371, 2185217, 6555651, 19666953]

約数ペア:

[(1, 19666953), (3, 6555651), (9, 2185217), (43, 457371), (89, 220977), (129, 152457), (267, 73659), (387, 50819), (571, 34443), (801, 24553), (1713, 11481), (3827, 5139)]