21427952

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14717}}^1$

素因数の和:14745

約数の個数: 40

約数和(自身を含む): 51100896

約数和(自身を除く): 29672944

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14717, 29434, 58868, 103019, 117736, 191321, 206038, 235472, 382642, 412076, 765284, 824152, 1339247, 1530568, 1648304, 2678494, 3061136, 5356988, 10713976, 21427952]

約数ペア:

[(1, 21427952), (2, 10713976), (4, 5356988), (7, 3061136), (8, 2678494), (13, 1648304), (14, 1530568), (16, 1339247), (26, 824152), (28, 765284), (52, 412076), (56, 382642), (91, 235472), (104, 206038), (112, 191321), (182, 117736), (208, 103019), (364, 58868), (728, 29434), (1456, 14717)]