21705456

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{503}}^1$

素因数の和:574

約数の個数: 80

約数和(自身を含む): 59996160

約数和(自身を除く): 38290704

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 31, 48, 58, 62, 87, 93, 116, 124, 174, 186, 232, 248, 348, 372, 464, 496, 503, 696, 744, 899, 1006, 1392, 1488, 1509, 1798, 2012, 2697, 3018, 3596, 4024, 5394, 6036, 7192, 8048, 10788, 12072, 14384, 14587, 15593, 21576, 24144, 29174, 31186, 43152, 43761, 46779, 58348, 62372, 87522, 93558, 116696, 124744, 175044, 187116, 233392, 249488, 350088, 374232, 452197, 700176, 748464, 904394, 1356591, 1808788, 2713182, 3617576, 5426364, 7235152, 10852728, 21705456]

約数ペア:

[(1, 21705456), (2, 10852728), (3, 7235152), (4, 5426364), (6, 3617576), (8, 2713182), (12, 1808788), (16, 1356591), (24, 904394), (29, 748464), (31, 700176), (48, 452197), (58, 374232), (62, 350088), (87, 249488), (93, 233392), (116, 187116), (124, 175044), (174, 124744), (186, 116696), (232, 93558), (248, 87522), (348, 62372), (372, 58348), (464, 46779), (496, 43761), (503, 43152), (696, 31186), (744, 29174), (899, 24144), (1006, 21576), (1392, 15593), (1488, 14587), (1509, 14384), (1798, 12072), (2012, 10788), (2697, 8048), (3018, 7192), (3596, 6036), (4024, 5394)]