28420029

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 48859200

約数和(自身を除く): 20439171

約数列:

[1, 3, 9, 11, 19, 29, 33, 57, 87, 99, 171, 209, 261, 319, 521, 551, 627, 957, 1563, 1653, 1881, 2871, 4689, 4959, 5731, 6061, 9899, 15109, 17193, 18183, 29697, 45327, 51579, 54549, 89091, 108889, 135981, 166199, 287071, 326667, 498597, 861213, 980001, 1495791, 2583639, 3157781, 9473343, 28420029]

約数ペア:

[(1, 28420029), (3, 9473343), (9, 3157781), (11, 2583639), (19, 1495791), (29, 980001), (33, 861213), (57, 498597), (87, 326667), (99, 287071), (171, 166199), (209, 135981), (261, 108889), (319, 89091), (521, 54549), (551, 51579), (627, 45327), (957, 29697), (1563, 18183), (1653, 17193), (1881, 15109), (2871, 9899), (4689, 6061), (4959, 5731)]