21250460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13799}}^1$

素因数の和:13826

約数の個数: 48

約数和(自身を含む): 55641600

約数和(自身を除く): 34391140

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13799, 27598, 55196, 68995, 96593, 137990, 151789, 193186, 275980, 303578, 386372, 482965, 607156, 758945, 965930, 1062523, 1517890, 1931860, 2125046, 3035780, 4250092, 5312615, 10625230, 21250460]

約数ペア:

[(1, 21250460), (2, 10625230), (4, 5312615), (5, 4250092), (7, 3035780), (10, 2125046), (11, 1931860), (14, 1517890), (20, 1062523), (22, 965930), (28, 758945), (35, 607156), (44, 482965), (55, 386372), (70, 303578), (77, 275980), (110, 193186), (140, 151789), (154, 137990), (220, 96593), (308, 68995), (385, 55196), (770, 27598), (1540, 13799)]