16561978

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{21179}}^1$

素因数の和:21221

約数の個数: 16

約数和(自身を含む): 27449280

約数和(自身を除く): 10887302

約数列:

[1, 2, 17, 23, 34, 46, 391, 782, 21179, 42358, 360043, 487117, 720086, 974234, 8280989, 16561978]

約数ペア:

[(1, 16561978), (2, 8280989), (17, 974234), (23, 720086), (34, 487117), (46, 360043), (391, 42358), (782, 21179)]