20213715

素因数分解:

$3^1\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1423}}^1$

素因数の和:2378

約数の個数: 16

約数和(自身を含む): 32398848

約数和(自身を除く): 12185133

約数列:

[1, 3, 5, 15, 947, 1423, 2841, 4269, 4735, 7115, 14205, 21345, 1347581, 4042743, 6737905, 20213715]

約数ペア:

[(1, 20213715), (3, 6737905), (5, 4042743), (15, 1347581), (947, 21345), (1423, 14205), (2841, 7115), (4269, 4735)]