18970325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{683}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 25953696

約数和(自身を除く): 6983371

約数列:

[1, 5, 11, 25, 55, 101, 275, 505, 683, 1111, 2525, 3415, 5555, 7513, 17075, 27775, 37565, 68983, 187825, 344915, 758813, 1724575, 3794065, 18970325]

約数ペア:

[(1, 18970325), (5, 3794065), (11, 1724575), (25, 758813), (55, 344915), (101, 187825), (275, 68983), (505, 37565), (683, 27775), (1111, 17075), (2525, 7513), (3415, 5555)]