21074176

素因数分解:

$2^8\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:638

約数の個数: 36

約数和(自身を含む): 42384384

約数和(自身を除く): 21310208

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 191, 256, 382, 431, 764, 862, 1528, 1724, 3056, 3448, 6112, 6896, 12224, 13792, 24448, 27584, 48896, 55168, 82321, 110336, 164642, 329284, 658568, 1317136, 2634272, 5268544, 10537088, 21074176]

約数ペア:

[(1, 21074176), (2, 10537088), (4, 5268544), (8, 2634272), (16, 1317136), (32, 658568), (64, 329284), (128, 164642), (191, 110336), (256, 82321), (382, 55168), (431, 48896), (764, 27584), (862, 24448), (1528, 13792), (1724, 12224), (3056, 6896), (3448, 6112)]