21267766

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 35816256

約数和(自身を除く): 14548490

約数列:

[1, 2, 13, 26, 41, 71, 82, 142, 281, 533, 562, 923, 1066, 1846, 2911, 3653, 5822, 7306, 11521, 19951, 23042, 37843, 39902, 75686, 149773, 259363, 299546, 518726, 817991, 1635982, 10633883, 21267766]

約数ペア:

[(1, 21267766), (2, 10633883), (13, 1635982), (26, 817991), (41, 518726), (71, 299546), (82, 259363), (142, 149773), (281, 75686), (533, 39902), (562, 37843), (923, 23042), (1066, 19951), (1846, 11521), (2911, 7306), (3653, 5822)]