520040997

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{64997}}^1$

素因数の和:65137

約数の個数: 24

約数和(自身を含む): 865253376

約数和(自身を除く): 345212379

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2667, 8001, 64997, 194991, 454979, 584973, 1364937, 4094811, 8254619, 24763857, 57782333, 74291571, 173346999, 520040997]

約数ペア:

[(1, 520040997), (3, 173346999), (7, 74291571), (9, 57782333), (21, 24763857), (63, 8254619), (127, 4094811), (381, 1364937), (889, 584973), (1143, 454979), (2667, 194991), (8001, 64997)]