21810794

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:246

約数の個数: 32

約数和(自身を含む): 35235840

約数和(自身を除く): 13425046

約数列:

[1, 2, 31, 61, 62, 73, 79, 122, 146, 158, 1891, 2263, 2449, 3782, 4453, 4526, 4819, 4898, 5767, 8906, 9638, 11534, 138043, 149389, 178777, 276086, 298778, 351787, 357554, 703574, 10905397, 21810794]

約数ペア:

[(1, 21810794), (2, 10905397), (31, 703574), (61, 357554), (62, 351787), (73, 298778), (79, 276086), (122, 178777), (146, 149389), (158, 138043), (1891, 11534), (2263, 9638), (2449, 8906), (3782, 5767), (4453, 4898), (4526, 4819)]