12820545

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4129}}^1$

素因数の和:4166

約数の個数: 32

約数和(自身を含む): 23788800

約数和(自身を除く): 10968255

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 4129, 12387, 20645, 37161, 61935, 94967, 111483, 185805, 284901, 474835, 557415, 854703, 1424505, 2564109, 4273515, 12820545]

約数ペア:

[(1, 12820545), (3, 4273515), (5, 2564109), (9, 1424505), (15, 854703), (23, 557415), (27, 474835), (45, 284901), (69, 185805), (115, 111483), (135, 94967), (207, 61935), (345, 37161), (621, 20645), (1035, 12387), (3105, 4129)]