20122179

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{7919}}^1$

素因数の和:7951

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 13585341

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 2541, 7919, 23757, 55433, 87109, 166299, 261327, 609763, 958199, 1829289, 2874597, 6707393, 20122179]

約数ペア:

[(1, 20122179), (3, 6707393), (7, 2874597), (11, 1829289), (21, 958199), (33, 609763), (77, 261327), (121, 166299), (231, 87109), (363, 55433), (847, 23757), (2541, 7919)]