19904408

素因数分解:

$2^3\times {\mathrm{271}}^1\times {\mathrm{9181}}^1$

素因数の和:9458

約数の個数: 16

約数和(自身を含む): 37462560

約数和(自身を除く): 17558152

約数列:

[1, 2, 4, 8, 271, 542, 1084, 2168, 9181, 18362, 36724, 73448, 2488051, 4976102, 9952204, 19904408]

約数ペア:

[(1, 19904408), (2, 9952204), (4, 4976102), (8, 2488051), (271, 73448), (542, 36724), (1084, 18362), (2168, 9181)]