20005125217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{28813}}^1$

素因数の和:29029

約数の個数: 32

約数和(自身を含む): 25492783104

約数和(自身を除く): 5487657887

約数列:

[1, 7, 11, 71, 77, 127, 497, 781, 889, 1397, 5467, 9017, 9779, 28813, 63119, 99187, 201691, 316943, 694309, 2045723, 2218601, 3659251, 14320061, 22502953, 25614757, 40251761, 157520671, 259806821, 281762327, 1818647747, 2857875031, 20005125217]

約数ペア:

[(1, 20005125217), (7, 2857875031), (11, 1818647747), (71, 281762327), (77, 259806821), (127, 157520671), (497, 40251761), (781, 25614757), (889, 22502953), (1397, 14320061), (5467, 3659251), (9017, 2218601), (9779, 2045723), (28813, 694309), (63119, 316943), (99187, 201691)]