21642120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{691}}^1$

素因数の和:740

約数の個数: 128

約数和(自身を含む): 74736000

約数和(自身を除く): 53093880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 40, 45, 54, 58, 60, 72, 87, 90, 108, 116, 120, 135, 145, 174, 180, 216, 232, 261, 270, 290, 348, 360, 435, 522, 540, 580, 691, 696, 783, 870, 1044, 1080, 1160, 1305, 1382, 1566, 1740, 2073, 2088, 2610, 2764, 3132, 3455, 3480, 3915, 4146, 5220, 5528, 6219, 6264, 6910, 7830, 8292, 10365, 10440, 12438, 13820, 15660, 16584, 18657, 20039, 20730, 24876, 27640, 31095, 31320, 37314, 40078, 41460, 49752, 60117, 62190, 74628, 80156, 82920, 93285, 100195, 120234, 124380, 149256, 160312, 180351, 186570, 200390, 240468, 248760, 300585, 360702, 373140, 400780, 480936, 541053, 601170, 721404, 746280, 801560, 901755, 1082106, 1202340, 1442808, 1803510, 2164212, 2404680, 2705265, 3607020, 4328424, 5410530, 7214040, 10821060, 21642120]

約数ペア:

[(1, 21642120), (2, 10821060), (3, 7214040), (4, 5410530), (5, 4328424), (6, 3607020), (8, 2705265), (9, 2404680), (10, 2164212), (12, 1803510), (15, 1442808), (18, 1202340), (20, 1082106), (24, 901755), (27, 801560), (29, 746280), (30, 721404), (36, 601170), (40, 541053), (45, 480936), (54, 400780), (58, 373140), (60, 360702), (72, 300585), (87, 248760), (90, 240468), (108, 200390), (116, 186570), (120, 180351), (135, 160312), (145, 149256), (174, 124380), (180, 120234), (216, 100195), (232, 93285), (261, 82920), (270, 80156), (290, 74628), (348, 62190), (360, 60117), (435, 49752), (522, 41460), (540, 40078), (580, 37314), (691, 31320), (696, 31095), (783, 27640), (870, 24876), (1044, 20730), (1080, 20039), (1160, 18657), (1305, 16584), (1382, 15660), (1566, 13820), (1740, 12438), (2073, 10440), (2088, 10365), (2610, 8292), (2764, 7830), (3132, 6910), (3455, 6264), (3480, 6219), (3915, 5528), (4146, 5220)]