21142240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:504

約数の個数: 96

約数和(自身を含む): 58544640

約数和(自身を除く): 37402400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 70, 80, 86, 112, 140, 160, 172, 215, 224, 280, 301, 344, 430, 439, 560, 602, 688, 860, 878, 1120, 1204, 1376, 1505, 1720, 1756, 2195, 2408, 3010, 3073, 3440, 3512, 4390, 4816, 6020, 6146, 6880, 7024, 8780, 9632, 12040, 12292, 14048, 15365, 17560, 18877, 24080, 24584, 30730, 35120, 37754, 48160, 49168, 61460, 70240, 75508, 94385, 98336, 122920, 132139, 151016, 188770, 245840, 264278, 302032, 377540, 491680, 528556, 604064, 660695, 755080, 1057112, 1321390, 1510160, 2114224, 2642780, 3020320, 4228448, 5285560, 10571120, 21142240]

約数ペア:

[(1, 21142240), (2, 10571120), (4, 5285560), (5, 4228448), (7, 3020320), (8, 2642780), (10, 2114224), (14, 1510160), (16, 1321390), (20, 1057112), (28, 755080), (32, 660695), (35, 604064), (40, 528556), (43, 491680), (56, 377540), (70, 302032), (80, 264278), (86, 245840), (112, 188770), (140, 151016), (160, 132139), (172, 122920), (215, 98336), (224, 94385), (280, 75508), (301, 70240), (344, 61460), (430, 49168), (439, 48160), (560, 37754), (602, 35120), (688, 30730), (860, 24584), (878, 24080), (1120, 18877), (1204, 17560), (1376, 15365), (1505, 14048), (1720, 12292), (1756, 12040), (2195, 9632), (2408, 8780), (3010, 7024), (3073, 6880), (3440, 6146), (3512, 6020), (4390, 4816)]