18866631

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 30158848

約数和(自身を除く): 11292217

約数列:

[1, 3, 7, 21, 31, 73, 93, 217, 219, 397, 511, 651, 1191, 1533, 2263, 2779, 6789, 8337, 12307, 15841, 28981, 36921, 47523, 86149, 86943, 202867, 258447, 608601, 898411, 2695233, 6288877, 18866631]

約数ペア:

[(1, 18866631), (3, 6288877), (7, 2695233), (21, 898411), (31, 608601), (73, 258447), (93, 202867), (217, 86943), (219, 86149), (397, 47523), (511, 36921), (651, 28981), (1191, 15841), (1533, 12307), (2263, 8337), (2779, 6789)]