20986035

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{743}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 17582925

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 269, 743, 807, 1345, 1883, 2229, 3715, 4035, 5201, 5649, 9415, 11145, 15603, 26005, 28245, 78015, 199867, 599601, 999335, 1399069, 2998005, 4197207, 6995345, 20986035]

約数ペア:

[(1, 20986035), (3, 6995345), (5, 4197207), (7, 2998005), (15, 1399069), (21, 999335), (35, 599601), (105, 199867), (269, 78015), (743, 28245), (807, 26005), (1345, 15603), (1883, 11145), (2229, 9415), (3715, 5649), (4035, 5201)]