20176890419

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1973}}^1\times {\mathrm{4523}}^1$

素因数の和:6539

約数の個数: 32

約数和(自身を含む): 25719482880

約数和(自身を除く): 5542592461

約数列:

[1, 7, 17, 19, 119, 133, 323, 1973, 2261, 4523, 13811, 31661, 33541, 37487, 76891, 85937, 234787, 262409, 538237, 601559, 637279, 1460929, 4460953, 8923879, 10226503, 62467153, 151705943, 169553701, 1061941601, 1186875907, 2882412917, 20176890419]

約数ペア:

[(1, 20176890419), (7, 2882412917), (17, 1186875907), (19, 1061941601), (119, 169553701), (133, 151705943), (323, 62467153), (1973, 10226503), (2261, 8923879), (4523, 4460953), (13811, 1460929), (31661, 637279), (33541, 601559), (37487, 538237), (76891, 262409), (85937, 234787)]