221158755

素因数分解:

$3^4\times 5^1\times {\mathrm{546071}}^1$

素因数の和:546088

約数の個数: 20

約数和(自身を含む): 396448272

約数和(自身を除く): 175289517

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 546071, 1638213, 2730355, 4914639, 8191065, 14743917, 24573195, 44231751, 73719585, 221158755]

約数ペア:

[(1, 221158755), (3, 73719585), (5, 44231751), (9, 24573195), (15, 14743917), (27, 8191065), (45, 4914639), (81, 2730355), (135, 1638213), (405, 546071)]