19734448

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:565

約数の個数: 40

約数和(自身を含む): 39841200

約数和(自身を除く): 20106752

約数列:

[1, 2, 4, 8, 16, 41, 67, 82, 134, 164, 268, 328, 449, 536, 656, 898, 1072, 1796, 2747, 3592, 5494, 7184, 10988, 18409, 21976, 30083, 36818, 43952, 60166, 73636, 120332, 147272, 240664, 294544, 481328, 1233403, 2466806, 4933612, 9867224, 19734448]

約数ペア:

[(1, 19734448), (2, 9867224), (4, 4933612), (8, 2466806), (16, 1233403), (41, 481328), (67, 294544), (82, 240664), (134, 147272), (164, 120332), (268, 73636), (328, 60166), (449, 43952), (536, 36818), (656, 30083), (898, 21976), (1072, 18409), (1796, 10988), (2747, 7184), (3592, 5494)]