18340491

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 9964149

約数列:

[1, 3, 13, 19, 39, 53, 57, 159, 247, 467, 689, 741, 1007, 1401, 2067, 3021, 6071, 8873, 13091, 18213, 24751, 26619, 39273, 74253, 115349, 321763, 346047, 470269, 965289, 1410807, 6113497, 18340491]

約数ペア:

[(1, 18340491), (3, 6113497), (13, 1410807), (19, 965289), (39, 470269), (53, 346047), (57, 321763), (159, 115349), (247, 74253), (467, 39273), (689, 26619), (741, 24751), (1007, 18213), (1401, 13091), (2067, 8873), (3021, 6071)]