21383008

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1709}}^1$

素因数の和:1759

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 25156352

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 1564, 1709, 3128, 3418, 6256, 6836, 12512, 13672, 27344, 29053, 39307, 54688, 58106, 78614, 116212, 157228, 232424, 314456, 464848, 628912, 668219, 929696, 1257824, 1336438, 2672876, 5345752, 10691504, 21383008]

約数ペア:

[(1, 21383008), (2, 10691504), (4, 5345752), (8, 2672876), (16, 1336438), (17, 1257824), (23, 929696), (32, 668219), (34, 628912), (46, 464848), (68, 314456), (92, 232424), (136, 157228), (184, 116212), (272, 78614), (368, 58106), (391, 54688), (544, 39307), (736, 29053), (782, 27344), (1564, 13672), (1709, 12512), (3128, 6836), (3418, 6256)]