12989168

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{9781}}^1$

素因数の和:9872

約数の個数: 20

約数和(自身を含む): 25472328

約数和(自身を除く): 12483160

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 9781, 19562, 39124, 78248, 156496, 811823, 1623646, 3247292, 6494584, 12989168]

約数ペア:

[(1, 12989168), (2, 6494584), (4, 3247292), (8, 1623646), (16, 811823), (83, 156496), (166, 78248), (332, 39124), (664, 19562), (1328, 9781)]