28211428

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2791}}^1$

素因数の和:2840

約数の個数: 36

約数和(自身を含む): 59570112

約数和(自身を除く): 31358684

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2527, 2791, 5054, 5582, 10108, 11164, 19537, 39074, 53029, 78148, 106058, 212116, 371203, 742406, 1007551, 1484812, 2015102, 4030204, 7052857, 14105714, 28211428]

約数ペア:

[(1, 28211428), (2, 14105714), (4, 7052857), (7, 4030204), (14, 2015102), (19, 1484812), (28, 1007551), (38, 742406), (76, 371203), (133, 212116), (266, 106058), (361, 78148), (532, 53029), (722, 39074), (1444, 19537), (2527, 11164), (2791, 10108), (5054, 5582)]