240654321

素因数分解:

$3^5\times {\mathrm{491}}^1\times {\mathrm{2017}}^1$

素因数の和:2523

約数の個数: 24

約数和(自身を含む): 361399584

約数和(自身を除く): 120745263

約数列:

[1, 3, 9, 27, 81, 243, 491, 1473, 2017, 4419, 6051, 13257, 18153, 39771, 54459, 119313, 163377, 490131, 990347, 2971041, 8913123, 26739369, 80218107, 240654321]

約数ペア:

[(1, 240654321), (3, 80218107), (9, 26739369), (27, 8913123), (81, 2971041), (243, 990347), (491, 490131), (1473, 163377), (2017, 119313), (4419, 54459), (6051, 39771), (13257, 18153)]