18211683

素因数分解:

$3^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{541}}^1$

素因数の和:787

約数の個数: 24

約数和(自身を含む): 28422480

約数和(自身を除く): 10210797

約数列:

[1, 3, 7, 21, 49, 147, 229, 541, 687, 1603, 1623, 3787, 4809, 11221, 11361, 26509, 33663, 79527, 123889, 371667, 867223, 2601669, 6070561, 18211683]

約数ペア:

[(1, 18211683), (3, 6070561), (7, 2601669), (21, 867223), (49, 371667), (147, 123889), (229, 79527), (541, 33663), (687, 26509), (1603, 11361), (1623, 11221), (3787, 4809)]