21299156631

素因数分解:

$3^4\times {\mathrm{919}}^1\times {\mathrm{286129}}^1$

素因数の和:287060

約数の個数: 20

約数和(自身を含む): 31851991600

約数和(自身を除く): 10552834969

約数列:

[1, 3, 9, 27, 81, 919, 2757, 8271, 24813, 74439, 286129, 858387, 2575161, 7725483, 23176449, 262952551, 788857653, 2366572959, 7099718877, 21299156631]

約数ペア:

[(1, 21299156631), (3, 7099718877), (9, 2366572959), (27, 788857653), (81, 262952551), (919, 23176449), (2757, 7725483), (8271, 2575161), (24813, 858387), (74439, 286129)]