21829852

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 45849888

約数和(自身を除く): 24020036

約数列:

[1, 2, 4, 11, 22, 23, 37, 44, 46, 53, 74, 92, 106, 121, 148, 212, 242, 253, 407, 484, 506, 583, 814, 851, 1012, 1166, 1219, 1628, 1702, 1961, 2332, 2438, 2783, 3404, 3922, 4477, 4876, 5566, 6413, 7844, 8954, 9361, 11132, 12826, 13409, 17908, 18722, 21571, 25652, 26818, 37444, 43142, 45103, 53636, 86284, 90206, 102971, 147499, 180412, 205942, 237281, 294998, 411884, 474562, 496133, 589996, 949124, 992266, 1984532, 5457463, 10914926, 21829852]

約数ペア:

[(1, 21829852), (2, 10914926), (4, 5457463), (11, 1984532), (22, 992266), (23, 949124), (37, 589996), (44, 496133), (46, 474562), (53, 411884), (74, 294998), (92, 237281), (106, 205942), (121, 180412), (148, 147499), (212, 102971), (242, 90206), (253, 86284), (407, 53636), (484, 45103), (506, 43142), (583, 37444), (814, 26818), (851, 25652), (1012, 21571), (1166, 18722), (1219, 17908), (1628, 13409), (1702, 12826), (1961, 11132), (2332, 9361), (2438, 8954), (2783, 7844), (3404, 6413), (3922, 5566), (4477, 4876)]