21381206

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{8167}}^1$

素因数の和:8204

約数の個数: 32

約数和(自身を含む): 42342912

約数和(自身を除く): 20961706

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 154, 187, 238, 374, 1309, 2618, 8167, 16334, 57169, 89837, 114338, 138839, 179674, 277678, 628859, 971873, 1257718, 1527229, 1943746, 3054458, 10690603, 21381206]

約数ペア:

[(1, 21381206), (2, 10690603), (7, 3054458), (11, 1943746), (14, 1527229), (17, 1257718), (22, 971873), (34, 628859), (77, 277678), (119, 179674), (154, 138839), (187, 114338), (238, 89837), (374, 57169), (1309, 16334), (2618, 8167)]