20721312

素因数分解:

$2^5\times 3^3\times {\mathrm{29}}^1\times {\mathrm{827}}^1$

素因数の和:875

約数の個数: 96

約数和(自身を含む): 62596800

約数和(自身を除く): 41875488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 32, 36, 48, 54, 58, 72, 87, 96, 108, 116, 144, 174, 216, 232, 261, 288, 348, 432, 464, 522, 696, 783, 827, 864, 928, 1044, 1392, 1566, 1654, 2088, 2481, 2784, 3132, 3308, 4176, 4962, 6264, 6616, 7443, 8352, 9924, 12528, 13232, 14886, 19848, 22329, 23983, 25056, 26464, 29772, 39696, 44658, 47966, 59544, 71949, 79392, 89316, 95932, 119088, 143898, 178632, 191864, 215847, 238176, 287796, 357264, 383728, 431694, 575592, 647541, 714528, 767456, 863388, 1151184, 1295082, 1726776, 2302368, 2590164, 3453552, 5180328, 6907104, 10360656, 20721312]

約数ペア:

[(1, 20721312), (2, 10360656), (3, 6907104), (4, 5180328), (6, 3453552), (8, 2590164), (9, 2302368), (12, 1726776), (16, 1295082), (18, 1151184), (24, 863388), (27, 767456), (29, 714528), (32, 647541), (36, 575592), (48, 431694), (54, 383728), (58, 357264), (72, 287796), (87, 238176), (96, 215847), (108, 191864), (116, 178632), (144, 143898), (174, 119088), (216, 95932), (232, 89316), (261, 79392), (288, 71949), (348, 59544), (432, 47966), (464, 44658), (522, 39696), (696, 29772), (783, 26464), (827, 25056), (864, 23983), (928, 22329), (1044, 19848), (1392, 14886), (1566, 13232), (1654, 12528), (2088, 9924), (2481, 8352), (2784, 7443), (3132, 6616), (3308, 6264), (4176, 4962)]