18891110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{673}}^1$

素因数の和:1088

約数の個数: 32

約数和(自身を含む): 39016512

約数和(自身を除く): 20125402

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 401, 673, 802, 1346, 2005, 2807, 3365, 4010, 4711, 5614, 6730, 9422, 14035, 23555, 28070, 47110, 269873, 539746, 1349365, 1889111, 2698730, 3778222, 9445555, 18891110]

約数ペア:

[(1, 18891110), (2, 9445555), (5, 3778222), (7, 2698730), (10, 1889111), (14, 1349365), (35, 539746), (70, 269873), (401, 47110), (673, 28070), (802, 23555), (1346, 14035), (2005, 9422), (2807, 6730), (3365, 5614), (4010, 4711)]