20959774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1223}}^1$

素因数の和:1296

約数の個数: 32

約数和(自身を含む): 37013760

約数和(自身を除く): 16053986

約数列:

[1, 2, 11, 19, 22, 38, 41, 82, 209, 418, 451, 779, 902, 1223, 1558, 2446, 8569, 13453, 17138, 23237, 26906, 46474, 50143, 100286, 255607, 511214, 551573, 952717, 1103146, 1905434, 10479887, 20959774]

約数ペア:

[(1, 20959774), (2, 10479887), (11, 1905434), (19, 1103146), (22, 952717), (38, 551573), (41, 511214), (82, 255607), (209, 100286), (418, 50143), (451, 46474), (779, 26906), (902, 23237), (1223, 17138), (1558, 13453), (2446, 8569)]