21455247

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{1481}}^1$

素因数の和:1934

約数の個数: 16

約数和(自身を含む): 31299840

約数和(自身を除く): 9844593

約数列:

[1, 3, 11, 33, 439, 1317, 1481, 4443, 4829, 14487, 16291, 48873, 650159, 1950477, 7151749, 21455247]

約数ペア:

[(1, 21455247), (3, 7151749), (11, 1950477), (33, 650159), (439, 48873), (1317, 16291), (1481, 14487), (4443, 4829)]