19385385

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{887}}^1$

素因数の和:973

約数の個数: 32

約数和(自身を含む): 32735232

約数和(自身を除く): 13349847

約数列:

[1, 3, 5, 15, 31, 47, 93, 141, 155, 235, 465, 705, 887, 1457, 2661, 4371, 4435, 7285, 13305, 21855, 27497, 41689, 82491, 125067, 137485, 208445, 412455, 625335, 1292359, 3877077, 6461795, 19385385]

約数ペア:

[(1, 19385385), (3, 6461795), (5, 3877077), (15, 1292359), (31, 625335), (47, 412455), (93, 208445), (141, 137485), (155, 125067), (235, 82491), (465, 41689), (705, 27497), (887, 21855), (1457, 13305), (2661, 7285), (4371, 4435)]