21495089

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16421}}^1$

素因数の和:16456

約数の個数: 16

約数和(自身を含む): 28377216

約数和(自身を除く): 6882127

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16421, 114947, 180631, 279157, 1264417, 1954099, 3070727, 21495089]

約数ペア:

[(1, 21495089), (7, 3070727), (11, 1954099), (17, 1264417), (77, 279157), (119, 180631), (187, 114947), (1309, 16421)]