18539404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4513}}^1$

素因数の和:4609

約数の個数: 24

約数和(自身を含む): 35389760

約数和(自身を除く): 16850356

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4513, 9026, 18052, 58669, 117338, 234676, 356527, 713054, 1426108, 4634851, 9269702, 18539404]

約数ペア:

[(1, 18539404), (2, 9269702), (4, 4634851), (13, 1426108), (26, 713054), (52, 356527), (79, 234676), (158, 117338), (316, 58669), (1027, 18052), (2054, 9026), (4108, 4513)]