21804832

素因数分解:

$2^5\times 7^1\times {\mathrm{311}}^1\times {\mathrm{313}}^1$

素因数の和:641

約数の個数: 48

約数和(自身を含む): 49375872

約数和(自身を除く): 27571040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 311, 313, 622, 626, 1244, 1252, 2177, 2191, 2488, 2504, 4354, 4382, 4976, 5008, 8708, 8764, 9952, 10016, 17416, 17528, 34832, 35056, 69664, 70112, 97343, 194686, 389372, 681401, 778744, 1362802, 1557488, 2725604, 3114976, 5451208, 10902416, 21804832]

約数ペア:

[(1, 21804832), (2, 10902416), (4, 5451208), (7, 3114976), (8, 2725604), (14, 1557488), (16, 1362802), (28, 778744), (32, 681401), (56, 389372), (112, 194686), (224, 97343), (311, 70112), (313, 69664), (622, 35056), (626, 34832), (1244, 17528), (1252, 17416), (2177, 10016), (2191, 9952), (2488, 8764), (2504, 8708), (4354, 5008), (4382, 4976)]