21678464

素因数分解:

$2^7\times {\mathrm{257}}^1\times {\mathrm{659}}^1$

素因数の和:930

約数の個数: 32

約数和(自身を含む): 43421400

約数和(自身を除く): 21742936

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 257, 514, 659, 1028, 1318, 2056, 2636, 4112, 5272, 8224, 10544, 16448, 21088, 32896, 42176, 84352, 169363, 338726, 677452, 1354904, 2709808, 5419616, 10839232, 21678464]

約数ペア:

[(1, 21678464), (2, 10839232), (4, 5419616), (8, 2709808), (16, 1354904), (32, 677452), (64, 338726), (128, 169363), (257, 84352), (514, 42176), (659, 32896), (1028, 21088), (1318, 16448), (2056, 10544), (2636, 8224), (4112, 5272)]