201221812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{40471}}^1$

素因数の和:40599

約数の個数: 24

約数和(自身を含む): 387559872

約数和(自身を除く): 186338060

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4972, 40471, 80942, 161884, 445181, 890362, 1780724, 4573223, 9146446, 18292892, 50305453, 100610906, 201221812]

約数ペア:

[(1, 201221812), (2, 100610906), (4, 50305453), (11, 18292892), (22, 9146446), (44, 4573223), (113, 1780724), (226, 890362), (452, 445181), (1243, 161884), (2486, 80942), (4972, 40471)]