19961375

素因数分解:

$5^3\times 7^2\times {\mathrm{3259}}^1$

素因数の和:3288

約数の個数: 24

約数和(自身を含む): 28987920

約数和(自身を除く): 9026545

約数列:

[1, 5, 7, 25, 35, 49, 125, 175, 245, 875, 1225, 3259, 6125, 16295, 22813, 81475, 114065, 159691, 407375, 570325, 798455, 2851625, 3992275, 19961375]

約数ペア:

[(1, 19961375), (5, 3992275), (7, 2851625), (25, 798455), (35, 570325), (49, 407375), (125, 159691), (175, 114065), (245, 81475), (875, 22813), (1225, 16295), (3259, 6125)]