7986251

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 10752000

約数和(自身を除く): 2765749

約数列:

[1, 7, 13, 19, 31, 91, 133, 149, 217, 247, 403, 589, 1043, 1729, 1937, 2821, 2831, 4123, 4619, 7657, 13559, 19817, 32333, 36803, 53599, 60047, 87761, 257621, 420329, 614327, 1140893, 7986251]

約数ペア:

[(1, 7986251), (7, 1140893), (13, 614327), (19, 420329), (31, 257621), (91, 87761), (133, 60047), (149, 53599), (217, 36803), (247, 32333), (403, 19817), (589, 13559), (1043, 7657), (1729, 4619), (1937, 4123), (2821, 2831)]