21874720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19531}}^1$

素因数の和:19553

約数の個数: 48

約数和(自身を含む): 59064768

約数和(自身を除く): 37190048

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 19531, 39062, 78124, 97655, 136717, 156248, 195310, 273434, 312496, 390620, 546868, 624992, 683585, 781240, 1093736, 1367170, 1562480, 2187472, 2734340, 3124960, 4374944, 5468680, 10937360, 21874720]

約数ペア:

[(1, 21874720), (2, 10937360), (4, 5468680), (5, 4374944), (7, 3124960), (8, 2734340), (10, 2187472), (14, 1562480), (16, 1367170), (20, 1093736), (28, 781240), (32, 683585), (35, 624992), (40, 546868), (56, 390620), (70, 312496), (80, 273434), (112, 195310), (140, 156248), (160, 136717), (224, 97655), (280, 78124), (560, 39062), (1120, 19531)]