21337728

素因数分解:

$2^7\times 3^1\times {\mathrm{181}}^1\times {\mathrm{307}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 57177120

約数和(自身を除く): 35839392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 181, 192, 307, 362, 384, 543, 614, 724, 921, 1086, 1228, 1448, 1842, 2172, 2456, 2896, 3684, 4344, 4912, 5792, 7368, 8688, 9824, 11584, 14736, 17376, 19648, 23168, 29472, 34752, 39296, 55567, 58944, 69504, 111134, 117888, 166701, 222268, 333402, 444536, 666804, 889072, 1333608, 1778144, 2667216, 3556288, 5334432, 7112576, 10668864, 21337728]

約数ペア:

[(1, 21337728), (2, 10668864), (3, 7112576), (4, 5334432), (6, 3556288), (8, 2667216), (12, 1778144), (16, 1333608), (24, 889072), (32, 666804), (48, 444536), (64, 333402), (96, 222268), (128, 166701), (181, 117888), (192, 111134), (307, 69504), (362, 58944), (384, 55567), (543, 39296), (614, 34752), (724, 29472), (921, 23168), (1086, 19648), (1228, 17376), (1448, 14736), (1842, 11584), (2172, 9824), (2456, 8688), (2896, 7368), (3684, 5792), (4344, 4912)]