21962241

素因数分解:

$3^2\times 7^2\times {\mathrm{49801}}^1$

素因数の和:49821

約数の個数: 18

約数和(自身を含む): 36903282

約数和(自身を除く): 14941041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 49801, 149403, 348607, 448209, 1045821, 2440249, 3137463, 7320747, 21962241]

約数ペア:

[(1, 21962241), (3, 7320747), (7, 3137463), (9, 2440249), (21, 1045821), (49, 448209), (63, 348607), (147, 149403), (441, 49801)]