19982844

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{443}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 58181760

約数和(自身を除く): 38198916

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 179, 252, 358, 443, 537, 716, 886, 1074, 1253, 1329, 1611, 1772, 2148, 2506, 2658, 3101, 3222, 3759, 3987, 5012, 5316, 6202, 6444, 7518, 7974, 9303, 11277, 12404, 15036, 15948, 18606, 22554, 27909, 37212, 45108, 55818, 79297, 111636, 158594, 237891, 317188, 475782, 555079, 713673, 951564, 1110158, 1427346, 1665237, 2220316, 2854692, 3330474, 4995711, 6660948, 9991422, 19982844]

約数ペア:

[(1, 19982844), (2, 9991422), (3, 6660948), (4, 4995711), (6, 3330474), (7, 2854692), (9, 2220316), (12, 1665237), (14, 1427346), (18, 1110158), (21, 951564), (28, 713673), (36, 555079), (42, 475782), (63, 317188), (84, 237891), (126, 158594), (179, 111636), (252, 79297), (358, 55818), (443, 45108), (537, 37212), (716, 27909), (886, 22554), (1074, 18606), (1253, 15948), (1329, 15036), (1611, 12404), (1772, 11277), (2148, 9303), (2506, 7974), (2658, 7518), (3101, 6444), (3222, 6202), (3759, 5316), (3987, 5012)]