21452704

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 31890656

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 53, 56, 91, 104, 106, 112, 139, 182, 208, 212, 224, 278, 364, 371, 416, 424, 556, 689, 728, 742, 848, 973, 1112, 1378, 1456, 1484, 1696, 1807, 1946, 2224, 2756, 2912, 2968, 3614, 3892, 4448, 4823, 5512, 5936, 7228, 7367, 7784, 9646, 11024, 11872, 12649, 14456, 14734, 15568, 19292, 22048, 25298, 28912, 29468, 31136, 38584, 50596, 51569, 57824, 58936, 77168, 95771, 101192, 103138, 117872, 154336, 191542, 202384, 206276, 235744, 383084, 404768, 412552, 670397, 766168, 825104, 1340794, 1532336, 1650208, 2681588, 3064672, 5363176, 10726352, 21452704]

約数ペア:

[(1, 21452704), (2, 10726352), (4, 5363176), (7, 3064672), (8, 2681588), (13, 1650208), (14, 1532336), (16, 1340794), (26, 825104), (28, 766168), (32, 670397), (52, 412552), (53, 404768), (56, 383084), (91, 235744), (104, 206276), (106, 202384), (112, 191542), (139, 154336), (182, 117872), (208, 103138), (212, 101192), (224, 95771), (278, 77168), (364, 58936), (371, 57824), (416, 51569), (424, 50596), (556, 38584), (689, 31136), (728, 29468), (742, 28912), (848, 25298), (973, 22048), (1112, 19292), (1378, 15568), (1456, 14734), (1484, 14456), (1696, 12649), (1807, 11872), (1946, 11024), (2224, 9646), (2756, 7784), (2912, 7367), (2968, 7228), (3614, 5936), (3892, 5512), (4448, 4823)]