20151801901

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{661}}^1\times {\mathrm{1249}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 25261920000

約数和(自身を除く): 5110118099

約数列:

[1, 7, 11, 77, 317, 661, 1249, 2219, 3487, 4627, 7271, 8743, 13739, 24409, 50897, 96173, 209537, 395933, 825589, 1466759, 2304907, 2771531, 4355263, 5779123, 9081479, 16134349, 30486841, 63570353, 261711713, 1831981991, 2878828843, 20151801901]

約数ペア:

[(1, 20151801901), (7, 2878828843), (11, 1831981991), (77, 261711713), (317, 63570353), (661, 30486841), (1249, 16134349), (2219, 9081479), (3487, 5779123), (4627, 4355263), (7271, 2771531), (8743, 2304907), (13739, 1466759), (24409, 825589), (50897, 395933), (96173, 209537)]