21066255

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66877}}^1$

素因数の和:66895

約数の個数: 24

約数和(自身を含む): 41731872

約数和(自身を除く): 20665617

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66877, 200631, 334385, 468139, 601893, 1003155, 1404417, 2340695, 3009465, 4213251, 7022085, 21066255]

約数ペア:

[(1, 21066255), (3, 7022085), (5, 4213251), (7, 3009465), (9, 2340695), (15, 1404417), (21, 1003155), (35, 601893), (45, 468139), (63, 334385), (105, 200631), (315, 66877)]