19853912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{547}}^1$

素因数の和:915

約数の個数: 32

約数和(自身を含む): 40278000

約数和(自身を除く): 20424088

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 349, 547, 698, 1094, 1396, 2188, 2792, 4376, 4537, 7111, 9074, 14222, 18148, 28444, 36296, 56888, 190903, 381806, 763612, 1527224, 2481739, 4963478, 9926956, 19853912]

約数ペア:

[(1, 19853912), (2, 9926956), (4, 4963478), (8, 2481739), (13, 1527224), (26, 763612), (52, 381806), (104, 190903), (349, 56888), (547, 36296), (698, 28444), (1094, 18148), (1396, 14222), (2188, 9074), (2792, 7111), (4376, 4537)]