20420778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{601}}^1\times {\mathrm{809}}^1$

素因数の和:1422

約数の個数: 32

約数和(自身を含む): 46811520

約数和(自身を除く): 26390742

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 601, 809, 1202, 1618, 1803, 2427, 3606, 4207, 4854, 5663, 8414, 11326, 12621, 16989, 25242, 33978, 486209, 972418, 1458627, 2917254, 3403463, 6806926, 10210389, 20420778]

約数ペア:

[(1, 20420778), (2, 10210389), (3, 6806926), (6, 3403463), (7, 2917254), (14, 1458627), (21, 972418), (42, 486209), (601, 33978), (809, 25242), (1202, 16989), (1618, 12621), (1803, 11326), (2427, 8414), (3606, 5663), (4207, 4854)]