18900266

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 37822464

約数和(自身を除く): 18922198

約数列:

[1, 2, 7, 11, 14, 22, 31, 37, 62, 74, 77, 107, 154, 214, 217, 259, 341, 407, 434, 518, 682, 749, 814, 1147, 1177, 1498, 2294, 2354, 2387, 2849, 3317, 3959, 4774, 5698, 6634, 7918, 8029, 8239, 12617, 16058, 16478, 23219, 25234, 27713, 36487, 43549, 46438, 55426, 72974, 87098, 88319, 122729, 176638, 245458, 255409, 304843, 510818, 609686, 859103, 1350019, 1718206, 2700038, 9450133, 18900266]

約数ペア:

[(1, 18900266), (2, 9450133), (7, 2700038), (11, 1718206), (14, 1350019), (22, 859103), (31, 609686), (37, 510818), (62, 304843), (74, 255409), (77, 245458), (107, 176638), (154, 122729), (214, 88319), (217, 87098), (259, 72974), (341, 55426), (407, 46438), (434, 43549), (518, 36487), (682, 27713), (749, 25234), (814, 23219), (1147, 16478), (1177, 16058), (1498, 12617), (2294, 8239), (2354, 8029), (2387, 7918), (2849, 6634), (3317, 5698), (3959, 4774)]