399771743

素因数分解:

$7^2\times {\mathrm{127}}^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 472430592

約数和(自身を除く): 72658849

約数列:

[1, 7, 49, 127, 227, 283, 889, 1589, 1981, 6223, 11123, 13867, 28829, 35941, 64241, 201803, 251587, 449687, 1412621, 1761109, 3147809, 8158607, 57110249, 399771743]

約数ペア:

[(1, 399771743), (7, 57110249), (49, 8158607), (127, 3147809), (227, 1761109), (283, 1412621), (889, 449687), (1589, 251587), (1981, 201803), (6223, 64241), (11123, 35941), (13867, 28829)]