21828840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:767

約数の個数: 128

約数和(自身を含む): 74649600

約数和(自身を除く): 52820760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 660, 690, 719, 759, 920, 1012, 1265, 1320, 1380, 1438, 1518, 2024, 2157, 2530, 2760, 2876, 3036, 3595, 3795, 4314, 5060, 5752, 6072, 7190, 7590, 7909, 8628, 10120, 10785, 14380, 15180, 15818, 16537, 17256, 21570, 23727, 28760, 30360, 31636, 33074, 39545, 43140, 47454, 49611, 63272, 66148, 79090, 82685, 86280, 94908, 99222, 118635, 132296, 158180, 165370, 181907, 189816, 198444, 237270, 248055, 316360, 330740, 363814, 396888, 474540, 496110, 545721, 661480, 727628, 909535, 949080, 992220, 1091442, 1455256, 1819070, 1984440, 2182884, 2728605, 3638140, 4365768, 5457210, 7276280, 10914420, 21828840]

約数ペア:

[(1, 21828840), (2, 10914420), (3, 7276280), (4, 5457210), (5, 4365768), (6, 3638140), (8, 2728605), (10, 2182884), (11, 1984440), (12, 1819070), (15, 1455256), (20, 1091442), (22, 992220), (23, 949080), (24, 909535), (30, 727628), (33, 661480), (40, 545721), (44, 496110), (46, 474540), (55, 396888), (60, 363814), (66, 330740), (69, 316360), (88, 248055), (92, 237270), (110, 198444), (115, 189816), (120, 181907), (132, 165370), (138, 158180), (165, 132296), (184, 118635), (220, 99222), (230, 94908), (253, 86280), (264, 82685), (276, 79090), (330, 66148), (345, 63272), (440, 49611), (460, 47454), (506, 43140), (552, 39545), (660, 33074), (690, 31636), (719, 30360), (759, 28760), (920, 23727), (1012, 21570), (1265, 17256), (1320, 16537), (1380, 15818), (1438, 15180), (1518, 14380), (2024, 10785), (2157, 10120), (2530, 8628), (2760, 7909), (2876, 7590), (3036, 7190), (3595, 6072), (3795, 5752), (4314, 5060)]