21471254

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1523}}^1$

素因数の和:1604

約数の個数: 32

約数和(自身を含む): 39502080

約数和(自身を除く): 18030826

約数列:

[1, 2, 7, 14, 19, 38, 53, 106, 133, 266, 371, 742, 1007, 1523, 2014, 3046, 7049, 10661, 14098, 21322, 28937, 57874, 80719, 161438, 202559, 405118, 565033, 1130066, 1533661, 3067322, 10735627, 21471254]

約数ペア:

[(1, 21471254), (2, 10735627), (7, 3067322), (14, 1533661), (19, 1130066), (38, 565033), (53, 405118), (106, 202559), (133, 161438), (266, 80719), (371, 57874), (742, 28937), (1007, 21322), (1523, 14098), (2014, 10661), (3046, 7049)]