17980726

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{7757}}^1$

素因数の和:7839

約数の個数: 16

約数和(自身を含む): 28859760

約数和(自身を除く): 10879034

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 7757, 15514, 147383, 294766, 473177, 946354, 8990363, 17980726]

約数ペア:

[(1, 17980726), (2, 8990363), (19, 946354), (38, 473177), (61, 294766), (122, 147383), (1159, 15514), (2318, 7757)]