19863753

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 34081920

約数和(自身を除く): 14218167

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 169, 193, 203, 273, 377, 507, 579, 609, 1131, 1183, 1351, 2509, 2639, 3549, 4053, 4901, 5597, 7527, 7917, 14703, 16791, 17563, 32617, 34307, 39179, 52689, 72761, 97851, 102921, 117537, 218283, 228319, 509327, 684957, 945893, 1527981, 2837679, 6621251, 19863753]

約数ペア:

[(1, 19863753), (3, 6621251), (7, 2837679), (13, 1527981), (21, 945893), (29, 684957), (39, 509327), (87, 228319), (91, 218283), (169, 117537), (193, 102921), (203, 97851), (273, 72761), (377, 52689), (507, 39179), (579, 34307), (609, 32617), (1131, 17563), (1183, 16791), (1351, 14703), (2509, 7917), (2639, 7527), (3549, 5597), (4053, 4901)]