81115921

素因数分解:

${\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1\times {\mathrm{251}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 87272640

約数和(自身を除く): 6156719

約数列:

[1, 19, 73, 233, 251, 1387, 4427, 4769, 17009, 18323, 58483, 323171, 348137, 1111177, 4269259, 81115921]

約数ペア:

[(1, 81115921), (19, 4269259), (73, 1111177), (233, 348137), (251, 323171), (1387, 58483), (4427, 18323), (4769, 17009)]