21294848

素因数分解:

$2^8\times {\mathrm{193}}^1\times {\mathrm{431}}^1$

素因数の和:640

約数の個数: 36

約数和(自身を含む): 42825888

約数和(自身を除く): 21531040

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 193, 256, 386, 431, 772, 862, 1544, 1724, 3088, 3448, 6176, 6896, 12352, 13792, 24704, 27584, 49408, 55168, 83183, 110336, 166366, 332732, 665464, 1330928, 2661856, 5323712, 10647424, 21294848]

約数ペア:

[(1, 21294848), (2, 10647424), (4, 5323712), (8, 2661856), (16, 1330928), (32, 665464), (64, 332732), (128, 166366), (193, 110336), (256, 83183), (386, 55168), (431, 49408), (772, 27584), (862, 24704), (1544, 13792), (1724, 12352), (3088, 6896), (3448, 6176)]