19349785

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 30530304

約数和(自身を除く): 11180519

約数列:

[1, 5, 7, 13, 23, 35, 43, 65, 91, 115, 161, 215, 299, 301, 455, 559, 805, 989, 1495, 1505, 1849, 2093, 2795, 3913, 4945, 6923, 9245, 10465, 12857, 12943, 19565, 24037, 34615, 42527, 64285, 64715, 89999, 120185, 168259, 212635, 297689, 449995, 552851, 841295, 1488445, 2764255, 3869957, 19349785]

約数ペア:

[(1, 19349785), (5, 3869957), (7, 2764255), (13, 1488445), (23, 841295), (35, 552851), (43, 449995), (65, 297689), (91, 212635), (115, 168259), (161, 120185), (215, 89999), (299, 64715), (301, 64285), (455, 42527), (559, 34615), (805, 24037), (989, 19565), (1495, 12943), (1505, 12857), (1849, 10465), (2093, 9245), (2795, 6923), (3913, 4945)]