20512781506

素因数分解:

$2^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{16187}}^1$

素因数の和:16463

約数の個数: 48

約数和(自身を含む): 36517408416

約数和(自身を除く): 16004626910

約数列:

[1, 2, 7, 14, 49, 67, 98, 134, 193, 386, 469, 938, 1351, 2702, 3283, 6566, 9457, 12931, 16187, 18914, 25862, 32374, 90517, 113309, 181034, 226618, 633619, 793163, 1084529, 1267238, 1586326, 2169058, 3124091, 6248182, 7591703, 15183406, 21868637, 43737274, 53141921, 106283842, 153080459, 209314097, 306160918, 418628194, 1465198679, 2930397358, 10256390753, 20512781506]

約数ペア:

[(1, 20512781506), (2, 10256390753), (7, 2930397358), (14, 1465198679), (49, 418628194), (67, 306160918), (98, 209314097), (134, 153080459), (193, 106283842), (386, 53141921), (469, 43737274), (938, 21868637), (1351, 15183406), (2702, 7591703), (3283, 6248182), (6566, 3124091), (9457, 2169058), (12931, 1586326), (16187, 1267238), (18914, 1084529), (25862, 793163), (32374, 633619), (90517, 226618), (113309, 181034)]