19937275

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 25873344

約数和(自身を除く): 5936069

約数列:

[1, 5, 25, 41, 53, 205, 265, 367, 1025, 1325, 1835, 2173, 9175, 10865, 15047, 19451, 54325, 75235, 97255, 376175, 486275, 797491, 3987455, 19937275]

約数ペア:

[(1, 19937275), (5, 3987455), (25, 797491), (41, 486275), (53, 376175), (205, 97255), (265, 75235), (367, 54325), (1025, 19451), (1325, 15047), (1835, 10865), (2173, 9175)]