21946855

素因数分解:

$5^1\times 7^3\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 9387545

約数列:

[1, 5, 7, 35, 49, 67, 191, 245, 335, 343, 469, 955, 1337, 1715, 2345, 3283, 6685, 9359, 12797, 16415, 22981, 46795, 63985, 65513, 89579, 114905, 327565, 447895, 627053, 3135265, 4389371, 21946855]

約数ペア:

[(1, 21946855), (5, 4389371), (7, 3135265), (35, 627053), (49, 447895), (67, 327565), (191, 114905), (245, 89579), (335, 65513), (343, 63985), (469, 46795), (955, 22981), (1337, 16415), (1715, 12797), (2345, 9359), (3283, 6685)]