21990959964

素因数分解:

$2^2\times 3^2\times {\mathrm{281}}^1\times {\mathrm{2173879}}^1$

素因数の和:2174170

約数の個数: 36

約数和(自身を含む): 55786108560

約数和(自身を除く): 33795148596

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 281, 562, 843, 1124, 1686, 2529, 3372, 5058, 10116, 2173879, 4347758, 6521637, 8695516, 13043274, 19564911, 26086548, 39129822, 78259644, 610859999, 1221719998, 1832579997, 2443439996, 3665159994, 5497739991, 7330319988, 10995479982, 21990959964]

約数ペア:

[(1, 21990959964), (2, 10995479982), (3, 7330319988), (4, 5497739991), (6, 3665159994), (9, 2443439996), (12, 1832579997), (18, 1221719998), (36, 610859999), (281, 78259644), (562, 39129822), (843, 26086548), (1124, 19564911), (1686, 13043274), (2529, 8695516), (3372, 6521637), (5058, 4347758), (10116, 2173879)]