121620156

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{397}}^1\times {\mathrm{521}}^1$

素因数の和:939

約数の個数: 72

約数和(自身を含む): 331578576

約数和(自身を除く): 209958420

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 397, 521, 588, 794, 1042, 1191, 1563, 1588, 2084, 2382, 2779, 3126, 3647, 4764, 5558, 6252, 7294, 8337, 10941, 11116, 14588, 16674, 19453, 21882, 25529, 33348, 38906, 43764, 51058, 58359, 76587, 77812, 102116, 116718, 153174, 206837, 233436, 306348, 413674, 620511, 827348, 1241022, 1447859, 2482044, 2895718, 4343577, 5791436, 8687154, 10135013, 17374308, 20270026, 30405039, 40540052, 60810078, 121620156]

約数ペア:

[(1, 121620156), (2, 60810078), (3, 40540052), (4, 30405039), (6, 20270026), (7, 17374308), (12, 10135013), (14, 8687154), (21, 5791436), (28, 4343577), (42, 2895718), (49, 2482044), (84, 1447859), (98, 1241022), (147, 827348), (196, 620511), (294, 413674), (397, 306348), (521, 233436), (588, 206837), (794, 153174), (1042, 116718), (1191, 102116), (1563, 77812), (1588, 76587), (2084, 58359), (2382, 51058), (2779, 43764), (3126, 38906), (3647, 33348), (4764, 25529), (5558, 21882), (6252, 19453), (7294, 16674), (8337, 14588), (10941, 11116)]