28269813

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 46063296

約数和(自身を除く): 17793483

約数列:

[1, 3, 11, 13, 33, 37, 39, 111, 137, 143, 169, 407, 411, 429, 481, 507, 1221, 1443, 1507, 1781, 1859, 4521, 5069, 5291, 5343, 5577, 6253, 15207, 15873, 18759, 19591, 23153, 55759, 58773, 65897, 68783, 69459, 167277, 197691, 206349, 254683, 724867, 764049, 856661, 2174601, 2569983, 9423271, 28269813]

約数ペア:

[(1, 28269813), (3, 9423271), (11, 2569983), (13, 2174601), (33, 856661), (37, 764049), (39, 724867), (111, 254683), (137, 206349), (143, 197691), (169, 167277), (407, 69459), (411, 68783), (429, 65897), (481, 58773), (507, 55759), (1221, 23153), (1443, 19591), (1507, 18759), (1781, 15873), (1859, 15207), (4521, 6253), (5069, 5577), (5291, 5343)]