20963481

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{601}}^1$

素因数の和:773

約数の個数: 32

約数和(自身を含む): 35137536

約数和(自身を除く): 14174055

約数列:

[1, 3, 7, 11, 21, 33, 77, 151, 231, 453, 601, 1057, 1661, 1803, 3171, 4207, 4983, 6611, 11627, 12621, 19833, 34881, 46277, 90751, 138831, 272253, 635257, 998261, 1905771, 2994783, 6987827, 20963481]

約数ペア:

[(1, 20963481), (3, 6987827), (7, 2994783), (11, 1905771), (21, 998261), (33, 635257), (77, 272253), (151, 138831), (231, 90751), (453, 46277), (601, 34881), (1057, 19833), (1661, 12621), (1803, 11627), (3171, 6611), (4207, 4983)]