21885920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{19541}}^1$

素因数の和:19563

約数の個数: 48

約数和(自身を含む): 59095008

約数和(自身を除く): 37209088

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, 19541, 39082, 78164, 97705, 136787, 156328, 195410, 273574, 312656, 390820, 547148, 625312, 683935, 781640, 1094296, 1367870, 1563280, 2188592, 2735740, 3126560, 4377184, 5471480, 10942960, 21885920]

約数ペア:

[(1, 21885920), (2, 10942960), (4, 5471480), (5, 4377184), (7, 3126560), (8, 2735740), (10, 2188592), (14, 1563280), (16, 1367870), (20, 1094296), (28, 781640), (32, 683935), (35, 625312), (40, 547148), (56, 390820), (70, 312656), (80, 273574), (112, 195410), (140, 156328), (160, 136787), (224, 97705), (280, 78164), (560, 39082), (1120, 19541)]