20318638

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:552

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 14206802

約数列:

[1, 2, 17, 19, 34, 38, 71, 142, 323, 443, 646, 886, 1207, 1349, 2414, 2698, 7531, 8417, 15062, 16834, 22933, 31453, 45866, 62906, 143089, 286178, 534701, 597607, 1069402, 1195214, 10159319, 20318638]

約数ペア:

[(1, 20318638), (2, 10159319), (17, 1195214), (19, 1069402), (34, 597607), (38, 534701), (71, 286178), (142, 143089), (323, 62906), (443, 45866), (646, 31453), (886, 22933), (1207, 16834), (1349, 15062), (2414, 8417), (2698, 7531)]