28507011

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 47738880

約数和(自身を除く): 19231869

約数列:

[1, 3, 13, 17, 19, 31, 39, 51, 57, 73, 93, 219, 221, 247, 323, 403, 527, 589, 663, 741, 949, 969, 1209, 1241, 1387, 1581, 1767, 2263, 2847, 3723, 4161, 4199, 6789, 6851, 7657, 10013, 12597, 16133, 18031, 20553, 22971, 23579, 29419, 30039, 38471, 42997, 48399, 54093, 70737, 88257, 115413, 128991, 130169, 306527, 390507, 500123, 558961, 730949, 919581, 1500369, 1676883, 2192847, 9502337, 28507011]

約数ペア:

[(1, 28507011), (3, 9502337), (13, 2192847), (17, 1676883), (19, 1500369), (31, 919581), (39, 730949), (51, 558961), (57, 500123), (73, 390507), (93, 306527), (219, 130169), (221, 128991), (247, 115413), (323, 88257), (403, 70737), (527, 54093), (589, 48399), (663, 42997), (741, 38471), (949, 30039), (969, 29419), (1209, 23579), (1241, 22971), (1387, 20553), (1581, 18031), (1767, 16133), (2263, 12597), (2847, 10013), (3723, 7657), (4161, 6851), (4199, 6789)]