20463513

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51287}}^1$

素因数の和:51316

約数の個数: 16

約数和(自身を含む): 32824320

約数和(自身を除く): 12360807

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51287, 153861, 359009, 974453, 1077027, 2923359, 6821171, 20463513]

約数ペア:

[(1, 20463513), (3, 6821171), (7, 2923359), (19, 1077027), (21, 974453), (57, 359009), (133, 153861), (399, 51287)]