139490351

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 188299776

約数和(自身を除く): 48809425

約数列:

[1, 7, 11, 13, 77, 91, 143, 331, 421, 1001, 2317, 2947, 3641, 4303, 4631, 5473, 25487, 30121, 32417, 38311, 47333, 60203, 139351, 331331, 421421, 975457, 1532861, 1811563, 10730027, 12680941, 19927193, 139490351]

約数ペア:

[(1, 139490351), (7, 19927193), (11, 12680941), (13, 10730027), (77, 1811563), (91, 1532861), (143, 975457), (331, 421421), (421, 331331), (1001, 139351), (2317, 60203), (2947, 47333), (3641, 38311), (4303, 32417), (4631, 30121), (5473, 25487)]