19967451

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3313}}^1$

素因数の和:3371

約数の個数: 24

約数和(自身を含む): 31734864

約数和(自身を除く): 11767413

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3313, 6027, 9939, 23191, 69573, 135833, 162337, 407499, 487011, 950831, 2852493, 6655817, 19967451]

約数ペア:

[(1, 19967451), (3, 6655817), (7, 2852493), (21, 950831), (41, 487011), (49, 407499), (123, 162337), (147, 135833), (287, 69573), (861, 23191), (2009, 9939), (3313, 6027)]