19795185

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1375

約数の個数: 40

約数和(自身を含む): 36471336

約数和(自身を除く): 16676151

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 333, 405, 555, 999, 1321, 1665, 2997, 3963, 4995, 6605, 11889, 14985, 19815, 35667, 48877, 59445, 107001, 146631, 178335, 244385, 439893, 535005, 733155, 1319679, 2199465, 3959037, 6598395, 19795185]

約数ペア:

[(1, 19795185), (3, 6598395), (5, 3959037), (9, 2199465), (15, 1319679), (27, 733155), (37, 535005), (45, 439893), (81, 244385), (111, 178335), (135, 146631), (185, 107001), (333, 59445), (405, 48877), (555, 35667), (999, 19815), (1321, 14985), (1665, 11889), (2997, 6605), (3963, 4995)]