16666881

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3137}}^1$

素因数の和:3181

約数の個数: 32

約数和(自身を含む): 28919808

約数和(自身を除く): 12252927

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 3137, 5313, 9411, 21959, 34507, 65877, 72151, 103521, 216453, 241549, 505057, 724647, 793661, 1515171, 2380983, 5555627, 16666881]

約数ペア:

[(1, 16666881), (3, 5555627), (7, 2380983), (11, 1515171), (21, 793661), (23, 724647), (33, 505057), (69, 241549), (77, 216453), (161, 103521), (231, 72151), (253, 65877), (483, 34507), (759, 21959), (1771, 9411), (3137, 5313)]