21784312

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 25908488

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 47, 88, 92, 94, 184, 188, 229, 253, 376, 458, 506, 517, 916, 1012, 1034, 1081, 1832, 2024, 2068, 2162, 2519, 4136, 4324, 5038, 5267, 8648, 10076, 10534, 10763, 11891, 20152, 21068, 21526, 23782, 42136, 43052, 47564, 57937, 86104, 95128, 115874, 118393, 231748, 236786, 247549, 463496, 473572, 495098, 947144, 990196, 1980392, 2723039, 5446078, 10892156, 21784312]

約数ペア:

[(1, 21784312), (2, 10892156), (4, 5446078), (8, 2723039), (11, 1980392), (22, 990196), (23, 947144), (44, 495098), (46, 473572), (47, 463496), (88, 247549), (92, 236786), (94, 231748), (184, 118393), (188, 115874), (229, 95128), (253, 86104), (376, 57937), (458, 47564), (506, 43052), (517, 42136), (916, 23782), (1012, 21526), (1034, 21068), (1081, 20152), (1832, 11891), (2024, 10763), (2068, 10534), (2162, 10076), (2519, 8648), (4136, 5267), (4324, 5038)]