21903392

素因数分解:

$2^5\times 7^2\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:314

約数の個数: 72

約数和(自身を含む): 51207660

約数和(自身を除く): 29304268

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 98, 112, 122, 196, 224, 229, 244, 392, 427, 458, 488, 784, 854, 916, 976, 1568, 1603, 1708, 1832, 1952, 2989, 3206, 3416, 3664, 5978, 6412, 6832, 7328, 11221, 11956, 12824, 13664, 13969, 22442, 23912, 25648, 27938, 44884, 47824, 51296, 55876, 89768, 95648, 97783, 111752, 179536, 195566, 223504, 359072, 391132, 447008, 684481, 782264, 1368962, 1564528, 2737924, 3129056, 5475848, 10951696, 21903392]

約数ペア:

[(1, 21903392), (2, 10951696), (4, 5475848), (7, 3129056), (8, 2737924), (14, 1564528), (16, 1368962), (28, 782264), (32, 684481), (49, 447008), (56, 391132), (61, 359072), (98, 223504), (112, 195566), (122, 179536), (196, 111752), (224, 97783), (229, 95648), (244, 89768), (392, 55876), (427, 51296), (458, 47824), (488, 44884), (784, 27938), (854, 25648), (916, 23912), (976, 22442), (1568, 13969), (1603, 13664), (1708, 12824), (1832, 11956), (1952, 11221), (2989, 7328), (3206, 6832), (3416, 6412), (3664, 5978)]