21693518

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140867}}^1$

素因数の和:140887

約数の個数: 16

約数和(自身を含む): 40569984

約数和(自身を除く): 18876466

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 140867, 281734, 986069, 1549537, 1972138, 3099074, 10846759, 21693518]

約数ペア:

[(1, 21693518), (2, 10846759), (7, 3099074), (11, 1972138), (14, 1549537), (22, 986069), (77, 281734), (154, 140867)]