18617264

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1303}}^1$

素因数の和:1377

約数の個数: 40

約数和(自身を含む): 38807040

約数和(自身を除く): 20189776

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1303, 1786, 2606, 3572, 5212, 7144, 10424, 14288, 20848, 24757, 49514, 61241, 99028, 122482, 198056, 244964, 396112, 489928, 979856, 1163579, 2327158, 4654316, 9308632, 18617264]

約数ペア:

[(1, 18617264), (2, 9308632), (4, 4654316), (8, 2327158), (16, 1163579), (19, 979856), (38, 489928), (47, 396112), (76, 244964), (94, 198056), (152, 122482), (188, 99028), (304, 61241), (376, 49514), (752, 24757), (893, 20848), (1303, 14288), (1786, 10424), (2606, 7144), (3572, 5212)]