81551638

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{187907}}^1$

素因数の和:187947

約数の個数: 16

約数和(自身を含む): 144313344

約数和(自身を除く): 62761706

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 187907, 375814, 1315349, 2630698, 5825117, 11650234, 40775819, 81551638]

約数ペア:

[(1, 81551638), (2, 40775819), (7, 11650234), (14, 5825117), (31, 2630698), (62, 1315349), (217, 375814), (434, 187907)]