18872936

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 17415064

約数列:

[1, 2, 4, 8, 71, 142, 149, 223, 284, 298, 446, 568, 596, 892, 1192, 1784, 10579, 15833, 21158, 31666, 33227, 42316, 63332, 66454, 84632, 126664, 132908, 265816, 2359117, 4718234, 9436468, 18872936]

約数ペア:

[(1, 18872936), (2, 9436468), (4, 4718234), (8, 2359117), (71, 265816), (142, 132908), (149, 126664), (223, 84632), (284, 66454), (298, 63332), (446, 42316), (568, 33227), (596, 31666), (892, 21158), (1192, 15833), (1784, 10579)]