7212821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{331}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 9051648

約数和(自身を除く): 1838827

約数列:

[1, 7, 11, 77, 283, 331, 1981, 2317, 3113, 3641, 21791, 25487, 93673, 655711, 1030403, 7212821]

約数ペア:

[(1, 7212821), (7, 1030403), (11, 655711), (77, 93673), (283, 25487), (331, 21791), (1981, 3641), (2317, 3113)]