21396900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{443}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 73995264

約数和(自身を除く): 52598364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 25, 28, 30, 35, 42, 46, 50, 60, 69, 70, 75, 84, 92, 100, 105, 115, 138, 140, 150, 161, 175, 210, 230, 276, 300, 322, 345, 350, 420, 443, 460, 483, 525, 575, 644, 690, 700, 805, 886, 966, 1050, 1150, 1329, 1380, 1610, 1725, 1772, 1932, 2100, 2215, 2300, 2415, 2658, 3101, 3220, 3450, 4025, 4430, 4830, 5316, 6202, 6645, 6900, 8050, 8860, 9303, 9660, 10189, 11075, 12075, 12404, 13290, 15505, 16100, 18606, 20378, 22150, 24150, 26580, 30567, 31010, 33225, 37212, 40756, 44300, 46515, 48300, 50945, 61134, 62020, 66450, 71323, 77525, 93030, 101890, 122268, 132900, 142646, 152835, 155050, 186060, 203780, 213969, 232575, 254725, 285292, 305670, 310100, 356615, 427938, 465150, 509450, 611340, 713230, 764175, 855876, 930300, 1018900, 1069845, 1426460, 1528350, 1783075, 2139690, 3056700, 3566150, 4279380, 5349225, 7132300, 10698450, 21396900]

約数ペア:

[(1, 21396900), (2, 10698450), (3, 7132300), (4, 5349225), (5, 4279380), (6, 3566150), (7, 3056700), (10, 2139690), (12, 1783075), (14, 1528350), (15, 1426460), (20, 1069845), (21, 1018900), (23, 930300), (25, 855876), (28, 764175), (30, 713230), (35, 611340), (42, 509450), (46, 465150), (50, 427938), (60, 356615), (69, 310100), (70, 305670), (75, 285292), (84, 254725), (92, 232575), (100, 213969), (105, 203780), (115, 186060), (138, 155050), (140, 152835), (150, 142646), (161, 132900), (175, 122268), (210, 101890), (230, 93030), (276, 77525), (300, 71323), (322, 66450), (345, 62020), (350, 61134), (420, 50945), (443, 48300), (460, 46515), (483, 44300), (525, 40756), (575, 37212), (644, 33225), (690, 31010), (700, 30567), (805, 26580), (886, 24150), (966, 22150), (1050, 20378), (1150, 18606), (1329, 16100), (1380, 15505), (1610, 13290), (1725, 12404), (1772, 12075), (1932, 11075), (2100, 10189), (2215, 9660), (2300, 9303), (2415, 8860), (2658, 8050), (3101, 6900), (3220, 6645), (3450, 6202), (4025, 5316), (4430, 4830)]