19190717

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 25256448

約数和(自身を除く): 6065731

約数列:

[1, 7, 13, 23, 53, 91, 161, 173, 299, 371, 689, 1211, 1219, 2093, 2249, 3979, 4823, 8533, 9169, 15743, 15847, 27853, 51727, 64183, 110929, 119197, 210887, 362089, 834379, 1476209, 2741531, 19190717]

約数ペア:

[(1, 19190717), (7, 2741531), (13, 1476209), (23, 834379), (53, 362089), (91, 210887), (161, 119197), (173, 110929), (299, 64183), (371, 51727), (689, 27853), (1211, 15847), (1219, 15743), (2093, 9169), (2249, 8533), (3979, 4823)]