20921387179

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14300333}}^1$

素因数の和:14300370

約数の個数: 16

約数和(自身を含む): 27456641280

約数和(自身を除く): 6535254101

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14300333, 100102331, 157303663, 271706327, 1101125641, 1901944289, 2988769597, 20921387179]

約数ペア:

[(1, 20921387179), (7, 2988769597), (11, 1901944289), (19, 1101125641), (77, 271706327), (133, 157303663), (209, 100102331), (1463, 14300333)]