19178315

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{293}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 26671680

約数和(自身を除く): 7493365

約数列:

[1, 5, 13, 19, 53, 65, 95, 247, 265, 293, 689, 1007, 1235, 1465, 3445, 3809, 5035, 5567, 13091, 15529, 19045, 27835, 65455, 72371, 77645, 201877, 295051, 361855, 1009385, 1475255, 3835663, 19178315]

約数ペア:

[(1, 19178315), (5, 3835663), (13, 1475255), (19, 1009385), (53, 361855), (65, 295051), (95, 201877), (247, 77645), (265, 72371), (293, 65455), (689, 27835), (1007, 19045), (1235, 15529), (1465, 13091), (3445, 5567), (3809, 5035)]