21294572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8713}}^1$

素因数の和:8777

約数の個数: 24

約数和(自身を含む): 40990656

約数和(自身を除く): 19696084

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8713, 17426, 34852, 113269, 226538, 409511, 453076, 819022, 1638044, 5323643, 10647286, 21294572]

約数ペア:

[(1, 21294572), (2, 10647286), (4, 5323643), (13, 1638044), (26, 819022), (47, 453076), (52, 409511), (94, 226538), (188, 113269), (611, 34852), (1222, 17426), (2444, 8713)]