18419135

素因数分解:

$5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{821}}^1$

素因数の和:1474

約数の個数: 16

約数和(自身を含む): 25330752

約数和(自身を除く): 6911617

約数列:

[1, 5, 7, 35, 641, 821, 3205, 4105, 4487, 5747, 22435, 28735, 526261, 2631305, 3683827, 18419135]

約数ペア:

[(1, 18419135), (5, 3683827), (7, 2631305), (35, 526261), (641, 28735), (821, 22435), (3205, 5747), (4105, 4487)]