21876015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3931}}^1$

素因数の和:3999

約数の個数: 32

約数和(自身を含む): 40766976

約数和(自身を除く): 18890961

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 3931, 5565, 11793, 19655, 27517, 58965, 82551, 137585, 208343, 412755, 625029, 1041715, 1458401, 3125145, 4375203, 7292005, 21876015]

約数ペア:

[(1, 21876015), (3, 7292005), (5, 4375203), (7, 3125145), (15, 1458401), (21, 1041715), (35, 625029), (53, 412755), (105, 208343), (159, 137585), (265, 82551), (371, 58965), (795, 27517), (1113, 19655), (1855, 11793), (3931, 5565)]