21515136

素因数分解:

$2^7\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1303}}^1$

素因数の和:1363

約数の個数: 64

約数和(自身を含む): 58523520

約数和(自身を除く): 37008384

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 64, 86, 96, 128, 129, 172, 192, 258, 344, 384, 516, 688, 1032, 1303, 1376, 2064, 2606, 2752, 3909, 4128, 5212, 5504, 7818, 8256, 10424, 15636, 16512, 20848, 31272, 41696, 56029, 62544, 83392, 112058, 125088, 166784, 168087, 224116, 250176, 336174, 448232, 500352, 672348, 896464, 1344696, 1792928, 2689392, 3585856, 5378784, 7171712, 10757568, 21515136]

約数ペア:

[(1, 21515136), (2, 10757568), (3, 7171712), (4, 5378784), (6, 3585856), (8, 2689392), (12, 1792928), (16, 1344696), (24, 896464), (32, 672348), (43, 500352), (48, 448232), (64, 336174), (86, 250176), (96, 224116), (128, 168087), (129, 166784), (172, 125088), (192, 112058), (258, 83392), (344, 62544), (384, 56029), (516, 41696), (688, 31272), (1032, 20848), (1303, 16512), (1376, 15636), (2064, 10424), (2606, 8256), (2752, 7818), (3909, 5504), (4128, 5212)]