20485206

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{443}}^1$

素因数の和:825

約数の個数: 48

約数和(自身を含む): 50978304

約数和(自身を除く): 30493098

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 367, 443, 734, 886, 1101, 1329, 2202, 2569, 2658, 3101, 3303, 3987, 5138, 6202, 6606, 7707, 7974, 9303, 15414, 18606, 23121, 27909, 46242, 55818, 162581, 325162, 487743, 975486, 1138067, 1463229, 2276134, 2926458, 3414201, 6828402, 10242603, 20485206]

約数ペア:

[(1, 20485206), (2, 10242603), (3, 6828402), (6, 3414201), (7, 2926458), (9, 2276134), (14, 1463229), (18, 1138067), (21, 975486), (42, 487743), (63, 325162), (126, 162581), (367, 55818), (443, 46242), (734, 27909), (886, 23121), (1101, 18606), (1329, 15414), (2202, 9303), (2569, 7974), (2658, 7707), (3101, 6606), (3303, 6202), (3987, 5138)]