81315978

素因数分解:

$2^1\times 3^1\times {\mathrm{641}}^1\times {\mathrm{21143}}^1$

素因数の和:21789

約数の個数: 16

約数和(自身を含む): 162893376

約数和(自身を除く): 81577398

約数列:

[1, 2, 3, 6, 641, 1282, 1923, 3846, 21143, 42286, 63429, 126858, 13552663, 27105326, 40657989, 81315978]

約数ペア:

[(1, 81315978), (2, 40657989), (3, 27105326), (6, 13552663), (641, 126858), (1282, 63429), (1923, 42286), (3846, 21143)]