20461916

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:845

約数の個数: 24

約数和(自身を含む): 36701280

約数和(自身を除く): 16239364

約数列:

[1, 2, 4, 71, 109, 142, 218, 284, 436, 661, 1322, 2644, 7739, 15478, 30956, 46931, 72049, 93862, 144098, 187724, 288196, 5115479, 10230958, 20461916]

約数ペア:

[(1, 20461916), (2, 10230958), (4, 5115479), (71, 288196), (109, 187724), (142, 144098), (218, 93862), (284, 72049), (436, 46931), (661, 30956), (1322, 15478), (2644, 7739)]