21740838

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{517639}}^1$

素因数の和:517651

約数の個数: 16

約数和(自身を含む): 49693440

約数和(自身を除く): 27952602

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 517639, 1035278, 1552917, 3105834, 3623473, 7246946, 10870419, 21740838]

約数ペア:

[(1, 21740838), (2, 10870419), (3, 7246946), (6, 3623473), (7, 3105834), (14, 1552917), (21, 1035278), (42, 517639)]