861904

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{523}}^1$

素因数の和:634

約数の個数: 20

約数和(自身を含む): 1689376

約数和(自身を除く): 827472

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 523, 824, 1046, 1648, 2092, 4184, 8368, 53869, 107738, 215476, 430952, 861904]

約数ペア:

[(1, 861904), (2, 430952), (4, 215476), (8, 107738), (16, 53869), (103, 8368), (206, 4184), (412, 2092), (523, 1648), (824, 1046)]