20824228

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{163}}^1$

素因数の和:268

約数の個数: 36

約数和(自身を含む): 39560080

約数和(自身を除く): 18735852

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 163, 164, 326, 652, 779, 1558, 1681, 3097, 3116, 3362, 6194, 6683, 6724, 12388, 13366, 26732, 31939, 63878, 126977, 127756, 253954, 274003, 507908, 548006, 1096012, 5206057, 10412114, 20824228]

約数ペア:

[(1, 20824228), (2, 10412114), (4, 5206057), (19, 1096012), (38, 548006), (41, 507908), (76, 274003), (82, 253954), (163, 127756), (164, 126977), (326, 63878), (652, 31939), (779, 26732), (1558, 13366), (1681, 12388), (3097, 6724), (3116, 6683), (3362, 6194)]