21287118

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{86533}}^1$

素因数の和:86579

約数の個数: 16

約数和(自身を含む): 43613136

約数和(自身を除く): 22326018

約数列:

[1, 2, 3, 6, 41, 82, 123, 246, 86533, 173066, 259599, 519198, 3547853, 7095706, 10643559, 21287118]

約数ペア:

[(1, 21287118), (2, 10643559), (3, 7095706), (6, 3547853), (41, 519198), (82, 259599), (123, 173066), (246, 86533)]