20591748

素因数分解:

$2^2\times 3^2\times {\mathrm{433}}^1\times {\mathrm{1321}}^1$

素因数の和:1764

約数の個数: 36

約数和(自身を含む): 52211068

約数和(自身を除く): 31619320

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 433, 866, 1299, 1321, 1732, 2598, 2642, 3897, 3963, 5196, 5284, 7794, 7926, 11889, 15588, 15852, 23778, 47556, 571993, 1143986, 1715979, 2287972, 3431958, 5147937, 6863916, 10295874, 20591748]

約数ペア:

[(1, 20591748), (2, 10295874), (3, 6863916), (4, 5147937), (6, 3431958), (9, 2287972), (12, 1715979), (18, 1143986), (36, 571993), (433, 47556), (866, 23778), (1299, 15852), (1321, 15588), (1732, 11889), (2598, 7926), (2642, 7794), (3897, 5284), (3963, 5196)]