19671855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4357}}^1$

素因数の和:4415

約数の個数: 32

約数和(自身を含む): 36816384

約数和(自身を除く): 17144529

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4357, 4515, 13071, 21785, 30499, 65355, 91497, 152495, 187351, 457485, 562053, 936755, 1311457, 2810265, 3934371, 6557285, 19671855]

約数ペア:

[(1, 19671855), (3, 6557285), (5, 3934371), (7, 2810265), (15, 1311457), (21, 936755), (35, 562053), (43, 457485), (105, 187351), (129, 152495), (215, 91497), (301, 65355), (645, 30499), (903, 21785), (1505, 13071), (4357, 4515)]