20775405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{821}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 38193408

約数和(自身を除く): 17418003

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 241, 723, 821, 1205, 1687, 2463, 3615, 4105, 5061, 5747, 8435, 12315, 17241, 25305, 28735, 86205, 197861, 593583, 989305, 1385027, 2967915, 4155081, 6925135, 20775405]

約数ペア:

[(1, 20775405), (3, 6925135), (5, 4155081), (7, 2967915), (15, 1385027), (21, 989305), (35, 593583), (105, 197861), (241, 86205), (723, 28735), (821, 25305), (1205, 17241), (1687, 12315), (2463, 8435), (3615, 5747), (4105, 5061)]