28818027

素因数分解:

$3^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:768

約数の個数: 36

約数和(自身を含む): 48977136

約数和(自身を除く): 20159109

約数列:

[1, 3, 7, 9, 21, 49, 63, 101, 147, 303, 441, 647, 707, 909, 1941, 2121, 4529, 4949, 5823, 6363, 13587, 14847, 31703, 40761, 44541, 65347, 95109, 196041, 285327, 457429, 588123, 1372287, 3202003, 4116861, 9606009, 28818027]

約数ペア:

[(1, 28818027), (3, 9606009), (7, 4116861), (9, 3202003), (21, 1372287), (49, 588123), (63, 457429), (101, 285327), (147, 196041), (303, 95109), (441, 65347), (647, 44541), (707, 40761), (909, 31703), (1941, 14847), (2121, 13587), (4529, 6363), (4949, 5823)]