19793585

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 28188672

約数和(自身を除く): 8395087

約数列:

[1, 5, 7, 35, 61, 73, 127, 305, 365, 427, 511, 635, 889, 2135, 2555, 4445, 4453, 7747, 9271, 22265, 31171, 38735, 46355, 54229, 64897, 155855, 271145, 324485, 565531, 2827655, 3958717, 19793585]

約数ペア:

[(1, 19793585), (5, 3958717), (7, 2827655), (35, 565531), (61, 324485), (73, 271145), (127, 155855), (305, 64897), (365, 54229), (427, 46355), (511, 38735), (635, 31171), (889, 22265), (2135, 9271), (2555, 7747), (4445, 4453)]