21585872

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2503}}^1$

素因数の和:2536

約数の個数: 60

約数和(自身を含む): 53094816

約数和(自身を除く): 31508944

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 308, 392, 539, 616, 784, 1078, 1232, 2156, 2503, 4312, 5006, 8624, 10012, 17521, 20024, 27533, 35042, 40048, 55066, 70084, 110132, 122647, 140168, 192731, 220264, 245294, 280336, 385462, 440528, 490588, 770924, 981176, 1349117, 1541848, 1962352, 2698234, 3083696, 5396468, 10792936, 21585872]

約数ペア:

[(1, 21585872), (2, 10792936), (4, 5396468), (7, 3083696), (8, 2698234), (11, 1962352), (14, 1541848), (16, 1349117), (22, 981176), (28, 770924), (44, 490588), (49, 440528), (56, 385462), (77, 280336), (88, 245294), (98, 220264), (112, 192731), (154, 140168), (176, 122647), (196, 110132), (308, 70084), (392, 55066), (539, 40048), (616, 35042), (784, 27533), (1078, 20024), (1232, 17521), (2156, 10012), (2503, 8624), (4312, 5006)]