21000209062

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{75389}}^1$

素因数の和:75696

約数の個数: 32

約数和(自身を含む): 36541834560

約数和(自身を除く): 15541625498

約数列:

[1, 2, 7, 14, 101, 197, 202, 394, 707, 1379, 1414, 2758, 19897, 39794, 75389, 139279, 150778, 278558, 527723, 1055446, 7614289, 14851633, 15228578, 29703266, 53300023, 103961431, 106600046, 207922862, 1500014933, 3000029866, 10500104531, 21000209062]

約数ペア:

[(1, 21000209062), (2, 10500104531), (7, 3000029866), (14, 1500014933), (101, 207922862), (197, 106600046), (202, 103961431), (394, 53300023), (707, 29703266), (1379, 15228578), (1414, 14851633), (2758, 7614289), (19897, 1055446), (39794, 527723), (75389, 278558), (139279, 150778)]