221720145

素因数分解:

$3^1\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{7103}}^1$

素因数の和:9192

約数の個数: 16

約数和(自身を含む): 354972672

約数和(自身を除く): 133252527

約数列:

[1, 3, 5, 15, 2081, 6243, 7103, 10405, 21309, 31215, 35515, 106545, 14781343, 44344029, 73906715, 221720145]

約数ペア:

[(1, 221720145), (3, 73906715), (5, 44344029), (15, 14781343), (2081, 106545), (6243, 35515), (7103, 31215), (10405, 21309)]