21861392

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4153}}^1$

素因数の和:4215

約数の個数: 40

約数和(自身を含む): 49449216

約数和(自身を除く): 27587824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 4153, 5264, 8306, 16612, 29071, 33224, 58142, 66448, 116284, 195191, 232568, 390382, 465136, 780764, 1366337, 1561528, 2732674, 3123056, 5465348, 10930696, 21861392]

約数ペア:

[(1, 21861392), (2, 10930696), (4, 5465348), (7, 3123056), (8, 2732674), (14, 1561528), (16, 1366337), (28, 780764), (47, 465136), (56, 390382), (94, 232568), (112, 195191), (188, 116284), (329, 66448), (376, 58142), (658, 33224), (752, 29071), (1316, 16612), (2632, 8306), (4153, 5264)]