18979618

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{25579}}^1$

素因数の和:25641

約数の個数: 16

約数和(自身を含む): 33151680

約数和(自身を除く): 14172062

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 25579, 51158, 179053, 358106, 1355687, 2711374, 9489809, 18979618]

約数ペア:

[(1, 18979618), (2, 9489809), (7, 2711374), (14, 1355687), (53, 358106), (106, 179053), (371, 51158), (742, 25579)]