19122315

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1363

約数の個数: 32

約数和(自身を含む): 32693760

約数和(自身を除く): 13571445

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 1289, 2967, 3867, 4945, 6445, 14835, 19335, 29647, 55427, 88941, 148235, 166281, 277135, 444705, 831405, 1274821, 3824463, 6374105, 19122315]

約数ペア:

[(1, 19122315), (3, 6374105), (5, 3824463), (15, 1274821), (23, 831405), (43, 444705), (69, 277135), (115, 166281), (129, 148235), (215, 88941), (345, 55427), (645, 29647), (989, 19335), (1289, 14835), (2967, 6445), (3867, 4945)]