20124045

素因数分解:

$3^6\times 5^1\times {\mathrm{5521}}^1$

素因数の和:5544

約数の個数: 28

約数和(自身を含む): 36213276

約数和(自身を除く): 16089231

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5521, 16563, 27605, 49689, 82815, 149067, 248445, 447201, 745335, 1341603, 2236005, 4024809, 6708015, 20124045]

約数ペア:

[(1, 20124045), (3, 6708015), (5, 4024809), (9, 2236005), (15, 1341603), (27, 745335), (45, 447201), (81, 248445), (135, 149067), (243, 82815), (405, 49689), (729, 27605), (1215, 16563), (3645, 5521)]