19319420

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1493}}^1$

素因数の和:2149

約数の個数: 24

約数和(自身を含む): 40660704

約数和(自身を除く): 21341284

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 1493, 2588, 2986, 3235, 5972, 6470, 7465, 12940, 14930, 29860, 965971, 1931942, 3863884, 4829855, 9659710, 19319420]

約数ペア:

[(1, 19319420), (2, 9659710), (4, 4829855), (5, 3863884), (10, 1931942), (20, 965971), (647, 29860), (1294, 14930), (1493, 12940), (2588, 7465), (2986, 6470), (3235, 5972)]