12558416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:543

約数の個数: 40

約数和(自身を含む): 26430600

約数和(自身を除く): 13872184

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 349, 692, 698, 1384, 1396, 2249, 2768, 2792, 4498, 4537, 5584, 8996, 9074, 17992, 18148, 35984, 36296, 60377, 72592, 120754, 241508, 483016, 784901, 966032, 1569802, 3139604, 6279208, 12558416]

約数ペア:

[(1, 12558416), (2, 6279208), (4, 3139604), (8, 1569802), (13, 966032), (16, 784901), (26, 483016), (52, 241508), (104, 120754), (173, 72592), (208, 60377), (346, 36296), (349, 35984), (692, 18148), (698, 17992), (1384, 9074), (1396, 8996), (2249, 5584), (2768, 4537), (2792, 4498)]