20107787

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 25116480

約数和(自身を除く): 5008693

約数列:

[1, 7, 17, 49, 101, 119, 239, 707, 833, 1673, 1717, 4063, 4949, 11711, 12019, 24139, 28441, 84133, 168973, 199087, 410363, 1182811, 2872541, 20107787]

約数ペア:

[(1, 20107787), (7, 2872541), (17, 1182811), (49, 410363), (101, 199087), (119, 168973), (239, 84133), (707, 28441), (833, 24139), (1673, 12019), (1717, 11711), (4063, 4949)]