28308423

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 20720697

約数列:

[1, 3, 11, 13, 19, 23, 33, 39, 57, 69, 143, 151, 209, 247, 253, 299, 429, 437, 453, 627, 741, 759, 897, 1311, 1661, 1963, 2717, 2869, 3289, 3473, 4807, 4983, 5681, 5889, 8151, 8607, 9867, 10419, 14421, 17043, 21593, 31559, 37297, 38203, 45149, 62491, 64779, 65987, 94677, 111891, 114609, 135447, 187473, 197961, 410267, 496639, 725857, 857831, 1230801, 1489917, 2177571, 2573493, 9436141, 28308423]

約数ペア:

[(1, 28308423), (3, 9436141), (11, 2573493), (13, 2177571), (19, 1489917), (23, 1230801), (33, 857831), (39, 725857), (57, 496639), (69, 410267), (143, 197961), (151, 187473), (209, 135447), (247, 114609), (253, 111891), (299, 94677), (429, 65987), (437, 64779), (453, 62491), (627, 45149), (741, 38203), (759, 37297), (897, 31559), (1311, 21593), (1661, 17043), (1963, 14421), (2717, 10419), (2869, 9867), (3289, 8607), (3473, 8151), (4807, 5889), (4983, 5681)]