21859964

素因数分解:

$2^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2237}}^1$

素因数の和:2597

約数の個数: 24

約数和(自身を含む): 43864800

約数和(自身を除く): 22004836

約数列:

[1, 2, 4, 7, 14, 28, 349, 698, 1396, 2237, 2443, 4474, 4886, 8948, 9772, 15659, 31318, 62636, 780713, 1561426, 3122852, 5464991, 10929982, 21859964]

約数ペア:

[(1, 21859964), (2, 10929982), (4, 5464991), (7, 3122852), (14, 1561426), (28, 780713), (349, 62636), (698, 31318), (1396, 15659), (2237, 9772), (2443, 8948), (4474, 4886)]