19386185

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 28933632

約数和(自身を除く): 9547447

約数列:

[1, 5, 7, 13, 35, 65, 91, 137, 311, 455, 685, 959, 1555, 1781, 2177, 4043, 4795, 8905, 10885, 12467, 20215, 28301, 42607, 62335, 141505, 213035, 298249, 553891, 1491245, 2769455, 3877237, 19386185]

約数ペア:

[(1, 19386185), (5, 3877237), (7, 2769455), (13, 1491245), (35, 553891), (65, 298249), (91, 213035), (137, 141505), (311, 62335), (455, 42607), (685, 28301), (959, 20215), (1555, 12467), (1781, 10885), (2177, 8905), (4043, 4795)]