201578279

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{21221}}^1$

素因数の和:21310

約数の個数: 16

約数和(自身を含む): 244477440

約数和(自身を除く): 42899161

約数列:

[1, 7, 23, 59, 161, 413, 1357, 9499, 21221, 148547, 488083, 1252039, 3416581, 8764273, 28796897, 201578279]

約数ペア:

[(1, 201578279), (7, 28796897), (23, 8764273), (59, 3416581), (161, 1252039), (413, 488083), (1357, 148547), (9499, 21221)]