21476308

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 47241600

約数和(自身を除く): 25765292

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 73, 76, 79, 98, 133, 146, 158, 196, 266, 292, 316, 511, 532, 553, 931, 1022, 1106, 1387, 1501, 1862, 2044, 2212, 2774, 3002, 3577, 3724, 3871, 5548, 5767, 6004, 7154, 7742, 9709, 10507, 11534, 14308, 15484, 19418, 21014, 23068, 38836, 40369, 42028, 67963, 73549, 80738, 109573, 135926, 147098, 161476, 219146, 271852, 282583, 294196, 438292, 565166, 767011, 1130332, 1534022, 3068044, 5369077, 10738154, 21476308]

約数ペア:

[(1, 21476308), (2, 10738154), (4, 5369077), (7, 3068044), (14, 1534022), (19, 1130332), (28, 767011), (38, 565166), (49, 438292), (73, 294196), (76, 282583), (79, 271852), (98, 219146), (133, 161476), (146, 147098), (158, 135926), (196, 109573), (266, 80738), (292, 73549), (316, 67963), (511, 42028), (532, 40369), (553, 38836), (931, 23068), (1022, 21014), (1106, 19418), (1387, 15484), (1501, 14308), (1862, 11534), (2044, 10507), (2212, 9709), (2774, 7742), (3002, 7154), (3577, 6004), (3724, 5767), (3871, 5548)]