21363776

素因数分解:

$2^6\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1$

素因数の和:1171

約数の個数: 56

約数和(自身を含む): 49621440

約数和(自身を除く): 28257664

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 172, 224, 301, 344, 448, 602, 688, 1109, 1204, 1376, 2218, 2408, 2752, 4436, 4816, 7763, 8872, 9632, 15526, 17744, 19264, 31052, 35488, 47687, 62104, 70976, 95374, 124208, 190748, 248416, 333809, 381496, 496832, 667618, 762992, 1335236, 1525984, 2670472, 3051968, 5340944, 10681888, 21363776]

約数ペア:

[(1, 21363776), (2, 10681888), (4, 5340944), (7, 3051968), (8, 2670472), (14, 1525984), (16, 1335236), (28, 762992), (32, 667618), (43, 496832), (56, 381496), (64, 333809), (86, 248416), (112, 190748), (172, 124208), (224, 95374), (301, 70976), (344, 62104), (448, 47687), (602, 35488), (688, 31052), (1109, 19264), (1204, 17744), (1376, 15526), (2218, 9632), (2408, 8872), (2752, 7763), (4436, 4816)]