18664737

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9767}}^1$

素因数の和:9797

約数の個数: 24

約数和(自身を含む): 31179456

約数和(自身を除く): 12514719

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 9767, 29301, 68369, 126971, 205107, 380913, 478583, 888797, 1435749, 2666391, 6221579, 18664737]

約数ペア:

[(1, 18664737), (3, 6221579), (7, 2666391), (13, 1435749), (21, 888797), (39, 478583), (49, 380913), (91, 205107), (147, 126971), (273, 68369), (637, 29301), (1911, 9767)]