19721950

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9173}}^1$

素因数の和:9228

約数の個数: 24

約数和(自身を含む): 37540008

約数和(自身を除く): 17818058

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9173, 18346, 45865, 91730, 229325, 394439, 458650, 788878, 1972195, 3944390, 9860975, 19721950]

約数ペア:

[(1, 19721950), (2, 9860975), (5, 3944390), (10, 1972195), (25, 788878), (43, 458650), (50, 394439), (86, 229325), (215, 91730), (430, 45865), (1075, 18346), (2150, 9173)]