20168145

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12113}}^1$

素因数の和:12161

約数の個数: 24

約数和(自身を含む): 35905896

約数和(自身を除く): 15737751

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12113, 36339, 60565, 109017, 181695, 448181, 545085, 1344543, 2240905, 4033629, 6722715, 20168145]

約数ペア:

[(1, 20168145), (3, 6722715), (5, 4033629), (9, 2240905), (15, 1344543), (37, 545085), (45, 448181), (111, 181695), (185, 109017), (333, 60565), (555, 36339), (1665, 12113)]