81878454

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{649829}}^1$

素因数の和:649844

約数の個数: 24

約数和(自身を含む): 202746960

約数和(自身を除く): 120868506

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 649829, 1299658, 1949487, 3898974, 4548803, 5848461, 9097606, 11696922, 13646409, 27292818, 40939227, 81878454]

約数ペア:

[(1, 81878454), (2, 40939227), (3, 27292818), (6, 13646409), (7, 11696922), (9, 9097606), (14, 5848461), (18, 4548803), (21, 3898974), (42, 1949487), (63, 1299658), (126, 649829)]