20317612

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 43214080

約数和(自身を除く): 22896468

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 181, 211, 266, 362, 422, 532, 724, 844, 1267, 1477, 2534, 2954, 3439, 4009, 5068, 5908, 6878, 8018, 13756, 16036, 24073, 28063, 38191, 48146, 56126, 76382, 96292, 112252, 152764, 267337, 534674, 725629, 1069348, 1451258, 2902516, 5079403, 10158806, 20317612]

約数ペア:

[(1, 20317612), (2, 10158806), (4, 5079403), (7, 2902516), (14, 1451258), (19, 1069348), (28, 725629), (38, 534674), (76, 267337), (133, 152764), (181, 112252), (211, 96292), (266, 76382), (362, 56126), (422, 48146), (532, 38191), (724, 28063), (844, 24073), (1267, 16036), (1477, 13756), (2534, 8018), (2954, 6878), (3439, 5908), (4009, 5068)]