221520278

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{439}}^1$

素因数の和:745

約数の個数: 48

約数和(自身を含む): 409305600

約数和(自身を除く): 187785322

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 271, 439, 542, 878, 931, 1862, 1897, 3073, 3794, 5149, 6146, 8341, 10298, 13279, 16682, 21511, 26558, 36043, 43022, 58387, 72086, 116774, 118969, 237938, 252301, 408709, 504602, 817418, 832783, 1665566, 2260411, 4520822, 5829481, 11658962, 15822877, 31645754, 110760139, 221520278]

約数ペア:

[(1, 221520278), (2, 110760139), (7, 31645754), (14, 15822877), (19, 11658962), (38, 5829481), (49, 4520822), (98, 2260411), (133, 1665566), (266, 832783), (271, 817418), (439, 504602), (542, 408709), (878, 252301), (931, 237938), (1862, 118969), (1897, 116774), (3073, 72086), (3794, 58387), (5149, 43022), (6146, 36043), (8341, 26558), (10298, 21511), (13279, 16682)]