215558497

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 285769728

約数和(自身を除く): 70211231

約数列:

[1, 7, 11, 47, 49, 67, 77, 127, 329, 469, 517, 539, 737, 889, 1397, 2303, 3149, 3283, 3619, 5159, 5969, 6223, 8509, 9779, 22043, 25333, 34639, 36113, 41783, 59563, 65659, 68453, 93599, 154301, 242473, 292481, 399923, 416941, 459613, 655193, 1697311, 2799461, 3217291, 4399153, 4586351, 19596227, 30794071, 215558497]

約数ペア:

[(1, 215558497), (7, 30794071), (11, 19596227), (47, 4586351), (49, 4399153), (67, 3217291), (77, 2799461), (127, 1697311), (329, 655193), (469, 459613), (517, 416941), (539, 399923), (737, 292481), (889, 242473), (1397, 154301), (2303, 93599), (3149, 68453), (3283, 65659), (3619, 59563), (5159, 41783), (5969, 36113), (6223, 34639), (8509, 25333), (9779, 22043)]