12121345

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{967}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 15333120

約数和(自身を除く): 3211775

約数列:

[1, 5, 23, 109, 115, 545, 967, 2507, 4835, 12535, 22241, 105403, 111205, 527015, 2424269, 12121345]

約数ペア:

[(1, 12121345), (5, 2424269), (23, 527015), (109, 111205), (115, 105403), (545, 22241), (967, 12535), (2507, 4835)]