28013909

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21401}}^1$

素因数の和:21436

約数の個数: 16

約数和(自身を含む): 36982656

約数和(自身を除く): 8968747

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 21401, 149807, 235411, 363817, 1647877, 2546719, 4001987, 28013909]

約数ペア:

[(1, 28013909), (7, 4001987), (11, 2546719), (17, 1647877), (77, 363817), (119, 235411), (187, 149807), (1309, 21401)]