21620331

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{5303}}^1$

素因数の和:5463

約数の個数: 16

約数和(自身を含む): 32248320

約数和(自身を除く): 10627989

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 5303, 15909, 47727, 143181, 800753, 2402259, 7206777, 21620331]

約数ペア:

[(1, 21620331), (3, 7206777), (9, 2402259), (27, 800753), (151, 143181), (453, 47727), (1359, 15909), (4077, 5303)]