21016078

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7883}}^1$

素因数の和:7959

約数の個数: 16

約数和(自身を含む): 33302016

約数和(自身を除く): 12285938

約数列:

[1, 2, 31, 43, 62, 86, 1333, 2666, 7883, 15766, 244373, 338969, 488746, 677938, 10508039, 21016078]

約数ペア:

[(1, 21016078), (2, 10508039), (31, 677938), (43, 488746), (62, 338969), (86, 244373), (1333, 15766), (2666, 7883)]