18902901

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1\times {\mathrm{463}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 26132480

約数和(自身を除く): 7229579

約数列:

[1, 3, 31, 93, 439, 463, 1317, 1389, 13609, 14353, 40827, 43059, 203257, 609771, 6300967, 18902901]

約数ペア:

[(1, 18902901), (3, 6300967), (31, 609771), (93, 203257), (439, 43059), (463, 40827), (1317, 14353), (1389, 13609)]