21390048

素因数分解:

$2^5\times 3^3\times {\mathrm{19}}^1\times {\mathrm{1303}}^1$

素因数の和:1341

約数の個数: 96

約数和(自身を含む): 65721600

約数和(自身を除く): 44331552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 72, 76, 96, 108, 114, 144, 152, 171, 216, 228, 288, 304, 342, 432, 456, 513, 608, 684, 864, 912, 1026, 1303, 1368, 1824, 2052, 2606, 2736, 3909, 4104, 5212, 5472, 7818, 8208, 10424, 11727, 15636, 16416, 20848, 23454, 24757, 31272, 35181, 41696, 46908, 49514, 62544, 70362, 74271, 93816, 99028, 125088, 140724, 148542, 187632, 198056, 222813, 281448, 297084, 375264, 396112, 445626, 562896, 594168, 668439, 792224, 891252, 1125792, 1188336, 1336878, 1782504, 2376672, 2673756, 3565008, 5347512, 7130016, 10695024, 21390048]

約数ペア:

[(1, 21390048), (2, 10695024), (3, 7130016), (4, 5347512), (6, 3565008), (8, 2673756), (9, 2376672), (12, 1782504), (16, 1336878), (18, 1188336), (19, 1125792), (24, 891252), (27, 792224), (32, 668439), (36, 594168), (38, 562896), (48, 445626), (54, 396112), (57, 375264), (72, 297084), (76, 281448), (96, 222813), (108, 198056), (114, 187632), (144, 148542), (152, 140724), (171, 125088), (216, 99028), (228, 93816), (288, 74271), (304, 70362), (342, 62544), (432, 49514), (456, 46908), (513, 41696), (608, 35181), (684, 31272), (864, 24757), (912, 23454), (1026, 20848), (1303, 16416), (1368, 15636), (1824, 11727), (2052, 10424), (2606, 8208), (2736, 7818), (3909, 5472), (4104, 5212)]