20135787

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{887}}^1$

素因数の和:967

約数の個数: 32

約数和(自身を含む): 32735232

約数和(自身を除く): 12599445

約数列:

[1, 3, 7, 21, 23, 47, 69, 141, 161, 329, 483, 887, 987, 1081, 2661, 3243, 6209, 7567, 18627, 20401, 22701, 41689, 61203, 125067, 142807, 291823, 428421, 875469, 958847, 2876541, 6711929, 20135787]

約数ペア:

[(1, 20135787), (3, 6711929), (7, 2876541), (21, 958847), (23, 875469), (47, 428421), (69, 291823), (141, 142807), (161, 125067), (329, 61203), (483, 41689), (887, 22701), (987, 20401), (1081, 18627), (2661, 7567), (3243, 6209)]