21020536

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3373}}^1$

素因数の和:3439

約数の個数: 32

約数和(自身を含む): 42512400

約数和(自身を除く): 21491864

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 3116, 3373, 6232, 6746, 13492, 26984, 64087, 128174, 138293, 256348, 276586, 512696, 553172, 1106344, 2627567, 5255134, 10510268, 21020536]

約数ペア:

[(1, 21020536), (2, 10510268), (4, 5255134), (8, 2627567), (19, 1106344), (38, 553172), (41, 512696), (76, 276586), (82, 256348), (152, 138293), (164, 128174), (328, 64087), (779, 26984), (1558, 13492), (3116, 6746), (3373, 6232)]