21047238

素因数分解:

$2^1\times 3^2\times {\mathrm{619}}^1\times {\mathrm{1889}}^1$

素因数の和:2516

約数の個数: 24

約数和(自身を含む): 45700200

約数和(自身を除く): 24652962

約数列:

[1, 2, 3, 6, 9, 18, 619, 1238, 1857, 1889, 3714, 3778, 5571, 5667, 11142, 11334, 17001, 34002, 1169291, 2338582, 3507873, 7015746, 10523619, 21047238]

約数ペア:

[(1, 21047238), (2, 10523619), (3, 7015746), (6, 3507873), (9, 2338582), (18, 1169291), (619, 34002), (1238, 17001), (1857, 11334), (1889, 11142), (3714, 5667), (3778, 5571)]