19962215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 29936256

約数和(自身を除く): 9974041

約数列:

[1, 5, 7, 13, 35, 65, 73, 91, 365, 455, 511, 601, 949, 2555, 3005, 4207, 4745, 6643, 7813, 21035, 33215, 39065, 43873, 54691, 219365, 273455, 307111, 570349, 1535555, 2851745, 3992443, 19962215]

約数ペア:

[(1, 19962215), (5, 3992443), (7, 2851745), (13, 1535555), (35, 570349), (65, 307111), (73, 273455), (91, 219365), (365, 54691), (455, 43873), (511, 39065), (601, 33215), (949, 21035), (2555, 7813), (3005, 6643), (4207, 4745)]