28193949

素因数分解:

$3^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1063}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 46696832

約数和(自身を除く): 18502883

約数列:

[1, 3, 7, 9, 21, 63, 421, 1063, 1263, 2947, 3189, 3789, 7441, 8841, 9567, 22323, 26523, 66969, 447523, 1342569, 3132661, 4027707, 9397983, 28193949]

約数ペア:

[(1, 28193949), (3, 9397983), (7, 4027707), (9, 3132661), (21, 1342569), (63, 447523), (421, 66969), (1063, 26523), (1263, 22323), (2947, 9567), (3189, 8841), (3789, 7441)]