18221456

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5449}}^1$

素因数の和:5487

約数の個数: 40

約数和(自身を含む): 40548000

約数和(自身を除く): 22326544

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 5449, 10898, 21796, 43592, 59939, 87184, 103531, 119878, 207062, 239756, 414124, 479512, 828248, 959024, 1138841, 1656496, 2277682, 4555364, 9110728, 18221456]

約数ペア:

[(1, 18221456), (2, 9110728), (4, 4555364), (8, 2277682), (11, 1656496), (16, 1138841), (19, 959024), (22, 828248), (38, 479512), (44, 414124), (76, 239756), (88, 207062), (152, 119878), (176, 103531), (209, 87184), (304, 59939), (418, 43592), (836, 21796), (1672, 10898), (3344, 5449)]