20931386

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2837}}^1$

素因数の和:2894

約数の個数: 32

約数和(自身を含む): 39232512

約数和(自身を除く): 18301126

約数列:

[1, 2, 7, 14, 17, 31, 34, 62, 119, 217, 238, 434, 527, 1054, 2837, 3689, 5674, 7378, 19859, 39718, 48229, 87947, 96458, 175894, 337603, 615629, 675206, 1231258, 1495099, 2990198, 10465693, 20931386]

約数ペア:

[(1, 20931386), (2, 10465693), (7, 2990198), (14, 1495099), (17, 1231258), (31, 675206), (34, 615629), (62, 337603), (119, 175894), (217, 96458), (238, 87947), (434, 48229), (527, 39718), (1054, 19859), (2837, 7378), (3689, 5674)]