21323085

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 40372416

約数和(自身を除く): 19049331

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 67, 105, 147, 201, 245, 335, 433, 469, 735, 1005, 1299, 1407, 2165, 2345, 3031, 3283, 6495, 7035, 9093, 9849, 15155, 16415, 21217, 29011, 45465, 49245, 63651, 87033, 106085, 145055, 203077, 318255, 435165, 609231, 1015385, 1421539, 3046155, 4264617, 7107695, 21323085]

約数ペア:

[(1, 21323085), (3, 7107695), (5, 4264617), (7, 3046155), (15, 1421539), (21, 1015385), (35, 609231), (49, 435165), (67, 318255), (105, 203077), (147, 145055), (201, 106085), (245, 87033), (335, 63651), (433, 49245), (469, 45465), (735, 29011), (1005, 21217), (1299, 16415), (1407, 15155), (2165, 9849), (2345, 9093), (3031, 7035), (3283, 6495)]