21094720

素因数分解:

$2^6\times 5^1\times {\mathrm{65921}}^1$

素因数の和:65938

約数の個数: 28

約数和(自身を含む): 50232564

約数和(自身を除く): 29137844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65921, 131842, 263684, 329605, 527368, 659210, 1054736, 1318420, 2109472, 2636840, 4218944, 5273680, 10547360, 21094720]

約数ペア:

[(1, 21094720), (2, 10547360), (4, 5273680), (5, 4218944), (8, 2636840), (10, 2109472), (16, 1318420), (20, 1054736), (32, 659210), (40, 527368), (64, 329605), (80, 263684), (160, 131842), (320, 65921)]