21231588

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 39732252

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 53, 57, 76, 84, 106, 114, 133, 159, 212, 228, 251, 266, 318, 371, 399, 502, 532, 636, 742, 753, 798, 1004, 1007, 1113, 1484, 1506, 1596, 1757, 2014, 2226, 3012, 3021, 3514, 4028, 4452, 4769, 5271, 6042, 7028, 7049, 9538, 10542, 12084, 13303, 14098, 14307, 19076, 21084, 21147, 26606, 28196, 28614, 33383, 39909, 42294, 53212, 57228, 66766, 79818, 84588, 93121, 100149, 133532, 159636, 186242, 200298, 252757, 279363, 372484, 400596, 505514, 558726, 758271, 1011028, 1117452, 1516542, 1769299, 3033084, 3538598, 5307897, 7077196, 10615794, 21231588]

約数ペア:

[(1, 21231588), (2, 10615794), (3, 7077196), (4, 5307897), (6, 3538598), (7, 3033084), (12, 1769299), (14, 1516542), (19, 1117452), (21, 1011028), (28, 758271), (38, 558726), (42, 505514), (53, 400596), (57, 372484), (76, 279363), (84, 252757), (106, 200298), (114, 186242), (133, 159636), (159, 133532), (212, 100149), (228, 93121), (251, 84588), (266, 79818), (318, 66766), (371, 57228), (399, 53212), (502, 42294), (532, 39909), (636, 33383), (742, 28614), (753, 28196), (798, 26606), (1004, 21147), (1007, 21084), (1113, 19076), (1484, 14307), (1506, 14098), (1596, 13303), (1757, 12084), (2014, 10542), (2226, 9538), (3012, 7049), (3021, 7028), (3514, 6042), (4028, 5271), (4452, 4769)]