21529455

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1151}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 36495360

約数和(自身を除く): 14965905

約数列:

[1, 3, 5, 15, 29, 43, 87, 129, 145, 215, 435, 645, 1151, 1247, 3453, 3741, 5755, 6235, 17265, 18705, 33379, 49493, 100137, 148479, 166895, 247465, 500685, 742395, 1435297, 4305891, 7176485, 21529455]

約数ペア:

[(1, 21529455), (3, 7176485), (5, 4305891), (15, 1435297), (29, 742395), (43, 500685), (87, 247465), (129, 166895), (145, 148479), (215, 100137), (435, 49493), (645, 33379), (1151, 18705), (1247, 17265), (3453, 6235), (3741, 5755)]