21178058

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 36251712

約数和(自身を除く): 15073654

約数列:

[1, 2, 11, 22, 41, 53, 82, 106, 443, 451, 583, 886, 902, 1166, 2173, 4346, 4873, 9746, 18163, 23479, 23903, 36326, 46958, 47806, 199793, 258269, 399586, 516538, 962639, 1925278, 10589029, 21178058]

約数ペア:

[(1, 21178058), (2, 10589029), (11, 1925278), (22, 962639), (41, 516538), (53, 399586), (82, 258269), (106, 199793), (443, 47806), (451, 46958), (583, 36326), (886, 23903), (902, 23479), (1166, 18163), (2173, 9746), (4346, 4873)]