21077888902

素因数分解:

$2^1\times 7^2\times {\mathrm{641}}^1\times {\mathrm{335539}}^1$

素因数の和:336196

約数の個数: 24

約数和(自身を含む): 36836252280

約数和(自身を除く): 15758363378

約数列:

[1, 2, 7, 14, 49, 98, 641, 1282, 4487, 8974, 31409, 62818, 335539, 671078, 2348773, 4697546, 16441411, 32882822, 215080499, 430160998, 1505563493, 3011126986, 10538944451, 21077888902]

約数ペア:

[(1, 21077888902), (2, 10538944451), (7, 3011126986), (14, 1505563493), (49, 430160998), (98, 215080499), (641, 32882822), (1282, 16441411), (4487, 4697546), (8974, 2348773), (31409, 671078), (62818, 335539)]