19959513

素因数分解:

$3^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:211

約数の個数: 40

約数和(自身を含む): 33074208

約数和(自身を除く): 13114695

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 163, 343, 357, 489, 833, 1029, 1141, 2401, 2499, 2771, 3423, 5831, 7203, 7987, 8313, 17493, 19397, 23961, 40817, 55909, 58191, 122451, 135779, 167727, 391363, 407337, 950453, 1174089, 2851359, 6653171, 19959513]

約数ペア:

[(1, 19959513), (3, 6653171), (7, 2851359), (17, 1174089), (21, 950453), (49, 407337), (51, 391363), (119, 167727), (147, 135779), (163, 122451), (343, 58191), (357, 55909), (489, 40817), (833, 23961), (1029, 19397), (1141, 17493), (2401, 8313), (2499, 7987), (2771, 7203), (3423, 5831)]