13197305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 18541440

約数和(自身を除く): 5344135

約数列:

[1, 5, 11, 19, 55, 73, 95, 173, 209, 365, 803, 865, 1045, 1387, 1903, 3287, 4015, 6935, 9515, 12629, 15257, 16435, 36157, 63145, 76285, 138919, 180785, 239951, 694595, 1199755, 2639461, 13197305]

約数ペア:

[(1, 13197305), (5, 2639461), (11, 1199755), (19, 694595), (55, 239951), (73, 180785), (95, 138919), (173, 76285), (209, 63145), (365, 36157), (803, 16435), (865, 15257), (1045, 12629), (1387, 9515), (1903, 6935), (3287, 4015)]