18938493

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17683}}^1$

素因数の和:17713

約数の個数: 24

約数和(自身を含む): 33104448

約数和(自身を除く): 14165955

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 17683, 53049, 123781, 159147, 300611, 371343, 901833, 1114029, 2104277, 2705499, 6312831, 18938493]

約数ペア:

[(1, 18938493), (3, 6312831), (7, 2705499), (9, 2104277), (17, 1114029), (21, 901833), (51, 371343), (63, 300611), (119, 159147), (153, 123781), (357, 53049), (1071, 17683)]