20608545

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 33997824

約数和(自身を除く): 13389279

約数列:

[1, 3, 5, 15, 61, 101, 183, 223, 303, 305, 505, 669, 915, 1115, 1515, 3345, 6161, 13603, 18483, 22523, 30805, 40809, 67569, 68015, 92415, 112615, 204045, 337845, 1373903, 4121709, 6869515, 20608545]

約数ペア:

[(1, 20608545), (3, 6869515), (5, 4121709), (15, 1373903), (61, 337845), (101, 204045), (183, 112615), (223, 92415), (303, 68015), (305, 67569), (505, 40809), (669, 30805), (915, 22523), (1115, 18483), (1515, 13603), (3345, 6161)]