27731565

素因数分解:

$3^4\times 5^1\times {\mathrm{68473}}^1$

素因数の和:68490

約数の個数: 20

約数和(自身を含む): 49712124

約数和(自身を除く): 21980559

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 68473, 205419, 342365, 616257, 1027095, 1848771, 3081285, 5546313, 9243855, 27731565]

約数ペア:

[(1, 27731565), (3, 9243855), (5, 5546313), (9, 3081285), (15, 1848771), (27, 1027095), (45, 616257), (81, 342365), (135, 205419), (405, 68473)]