19015295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 26308800

約数和(自身を除く): 7293505

約数列:

[1, 5, 13, 19, 65, 89, 95, 173, 247, 445, 865, 1157, 1235, 1691, 2249, 3287, 5785, 8455, 11245, 15397, 16435, 21983, 42731, 76985, 109915, 200161, 213655, 292543, 1000805, 1462715, 3803059, 19015295]

約数ペア:

[(1, 19015295), (5, 3803059), (13, 1462715), (19, 1000805), (65, 292543), (89, 213655), (95, 200161), (173, 109915), (247, 76985), (445, 42731), (865, 21983), (1157, 16435), (1235, 15397), (1691, 11245), (2249, 8455), (3287, 5785)]