19782165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{443}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 34312320

約数和(自身を除く): 14530155

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 229, 443, 687, 1145, 1329, 2215, 2977, 3435, 5759, 6645, 8931, 14885, 17277, 28795, 44655, 86385, 101447, 304341, 507235, 1318811, 1521705, 3956433, 6594055, 19782165]

約数ペア:

[(1, 19782165), (3, 6594055), (5, 3956433), (13, 1521705), (15, 1318811), (39, 507235), (65, 304341), (195, 101447), (229, 86385), (443, 44655), (687, 28795), (1145, 17277), (1329, 14885), (2215, 8931), (2977, 6645), (3435, 5759)]