21579904

素因数分解:

$2^7\times {\mathrm{53}}^1\times {\mathrm{3181}}^1$

素因数の和:3248

約数の個数: 32

約数和(自身を含む): 43816140

約数和(自身を除く): 22236236

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 424, 848, 1696, 3181, 3392, 6362, 6784, 12724, 25448, 50896, 101792, 168593, 203584, 337186, 407168, 674372, 1348744, 2697488, 5394976, 10789952, 21579904]

約数ペア:

[(1, 21579904), (2, 10789952), (4, 5394976), (8, 2697488), (16, 1348744), (32, 674372), (53, 407168), (64, 337186), (106, 203584), (128, 168593), (212, 101792), (424, 50896), (848, 25448), (1696, 12724), (3181, 6784), (3392, 6362)]