21150363

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:148

約数の個数: 64

約数和(自身を含む): 35804160

約数和(自身を除く): 14653797

約数列:

[1, 3, 13, 17, 19, 23, 39, 51, 57, 69, 73, 219, 221, 247, 299, 323, 391, 437, 663, 741, 897, 949, 969, 1173, 1241, 1311, 1387, 1679, 2847, 3723, 4161, 4199, 5037, 5083, 5681, 7429, 12597, 15249, 16133, 17043, 18031, 21827, 22287, 23579, 28543, 31901, 48399, 54093, 65481, 70737, 85629, 95703, 96577, 289731, 306527, 371059, 414713, 542317, 919581, 1113177, 1244139, 1626951, 7050121, 21150363]

約数ペア:

[(1, 21150363), (3, 7050121), (13, 1626951), (17, 1244139), (19, 1113177), (23, 919581), (39, 542317), (51, 414713), (57, 371059), (69, 306527), (73, 289731), (219, 96577), (221, 95703), (247, 85629), (299, 70737), (323, 65481), (391, 54093), (437, 48399), (663, 31901), (741, 28543), (897, 23579), (949, 22287), (969, 21827), (1173, 18031), (1241, 17043), (1311, 16133), (1387, 15249), (1679, 12597), (2847, 7429), (3723, 5681), (4161, 5083), (4199, 5037)]