213408045

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{128173}}^1$

素因数の和:128221

約数の個数: 24

約数和(自身を含む): 379907736

約数和(自身を除く): 166499691

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 128173, 384519, 640865, 1153557, 1922595, 4742401, 5767785, 14227203, 23712005, 42681609, 71136015, 213408045]

約数ペア:

[(1, 213408045), (3, 71136015), (5, 42681609), (9, 23712005), (15, 14227203), (37, 5767785), (45, 4742401), (111, 1922595), (185, 1153557), (333, 640865), (555, 384519), (1665, 128173)]