20543418

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3469}}^1$

素因数の和:3531

約数の個数: 48

約数和(自身を含む): 51966720

約数和(自身を除く): 31423302

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 47, 63, 94, 126, 141, 282, 329, 423, 658, 846, 987, 1974, 2961, 3469, 5922, 6938, 10407, 20814, 24283, 31221, 48566, 62442, 72849, 145698, 163043, 218547, 326086, 437094, 489129, 978258, 1141301, 1467387, 2282602, 2934774, 3423903, 6847806, 10271709, 20543418]

約数ペア:

[(1, 20543418), (2, 10271709), (3, 6847806), (6, 3423903), (7, 2934774), (9, 2282602), (14, 1467387), (18, 1141301), (21, 978258), (42, 489129), (47, 437094), (63, 326086), (94, 218547), (126, 163043), (141, 145698), (282, 72849), (329, 62442), (423, 48566), (658, 31221), (846, 24283), (987, 20814), (1974, 10407), (2961, 6938), (3469, 5922)]