20836473

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 32852736

約数和(自身を除く): 12016263

約数列:

[1, 3, 7, 21, 53, 97, 159, 193, 291, 371, 579, 679, 1113, 1351, 2037, 4053, 5141, 10229, 15423, 18721, 30687, 35987, 56163, 71603, 107961, 131047, 214809, 393141, 992213, 2976639, 6945491, 20836473]

約数ペア:

[(1, 20836473), (3, 6945491), (7, 2976639), (21, 992213), (53, 393141), (97, 214809), (159, 131047), (193, 107961), (291, 71603), (371, 56163), (579, 35987), (679, 30687), (1113, 18721), (1351, 15423), (2037, 10229), (4053, 5141)]