21363328

素因数分解:

$2^7\times 7^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 49302720

約数和(自身を除く): 27939392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 113, 128, 211, 224, 226, 422, 448, 452, 791, 844, 896, 904, 1477, 1582, 1688, 1808, 2954, 3164, 3376, 3616, 5908, 6328, 6752, 7232, 11816, 12656, 13504, 14464, 23632, 23843, 25312, 27008, 47264, 47686, 50624, 94528, 95372, 101248, 166901, 189056, 190744, 333802, 381488, 667604, 762976, 1335208, 1525952, 2670416, 3051904, 5340832, 10681664, 21363328]

約数ペア:

[(1, 21363328), (2, 10681664), (4, 5340832), (7, 3051904), (8, 2670416), (14, 1525952), (16, 1335208), (28, 762976), (32, 667604), (56, 381488), (64, 333802), (112, 190744), (113, 189056), (128, 166901), (211, 101248), (224, 95372), (226, 94528), (422, 50624), (448, 47686), (452, 47264), (791, 27008), (844, 25312), (896, 23843), (904, 23632), (1477, 14464), (1582, 13504), (1688, 12656), (1808, 11816), (2954, 7232), (3164, 6752), (3376, 6328), (3616, 5908)]