21342160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1657}}^1$

素因数の和:1700

約数の個数: 80

約数和(自身を含む): 59210496

約数和(自身を除く): 37868336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1657, 1840, 2576, 3220, 3314, 6440, 6628, 8285, 11599, 12880, 13256, 16570, 23198, 26512, 33140, 38111, 46396, 57995, 66280, 76222, 92792, 115990, 132560, 152444, 185584, 190555, 231980, 266777, 304888, 381110, 463960, 533554, 609776, 762220, 927920, 1067108, 1333885, 1524440, 2134216, 2667770, 3048880, 4268432, 5335540, 10671080, 21342160]

約数ペア:

[(1, 21342160), (2, 10671080), (4, 5335540), (5, 4268432), (7, 3048880), (8, 2667770), (10, 2134216), (14, 1524440), (16, 1333885), (20, 1067108), (23, 927920), (28, 762220), (35, 609776), (40, 533554), (46, 463960), (56, 381110), (70, 304888), (80, 266777), (92, 231980), (112, 190555), (115, 185584), (140, 152444), (161, 132560), (184, 115990), (230, 92792), (280, 76222), (322, 66280), (368, 57995), (460, 46396), (560, 38111), (644, 33140), (805, 26512), (920, 23198), (1288, 16570), (1610, 13256), (1657, 12880), (1840, 11599), (2576, 8285), (3220, 6628), (3314, 6440)]