20153973

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15733}}^1$

素因数の和:15804

約数の個数: 16

約数和(自身を含む): 31216256

約数和(自身を除く): 11062283

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15733, 47199, 110131, 330393, 959713, 2879139, 6717991, 20153973]

約数ペア:

[(1, 20153973), (3, 6717991), (7, 2879139), (21, 959713), (61, 330393), (183, 110131), (427, 47199), (1281, 15733)]