21128178

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{207139}}^1$

素因数の和:207161

約数の個数: 16

約数和(自身を含む): 44742240

約数和(自身を除く): 23614062

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 207139, 414278, 621417, 1242834, 3521363, 7042726, 10564089, 21128178]

約数ペア:

[(1, 21128178), (2, 10564089), (3, 7042726), (6, 3521363), (17, 1242834), (34, 621417), (51, 414278), (102, 207139)]