221771396

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{23227}}^1$

素因数の和:23280

約数の個数: 48

約数和(自身を含む): 499494912

約数和(自身を除く): 277723516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2387, 4774, 9548, 23227, 46454, 92908, 162589, 255497, 325178, 510994, 650356, 720037, 1021988, 1440074, 1788479, 2880148, 3576958, 5040259, 7153916, 7920407, 10080518, 15840814, 20161036, 31681628, 55442849, 110885698, 221771396]

約数ペア:

[(1, 221771396), (2, 110885698), (4, 55442849), (7, 31681628), (11, 20161036), (14, 15840814), (22, 10080518), (28, 7920407), (31, 7153916), (44, 5040259), (62, 3576958), (77, 2880148), (124, 1788479), (154, 1440074), (217, 1021988), (308, 720037), (341, 650356), (434, 510994), (682, 325178), (868, 255497), (1364, 162589), (2387, 92908), (4774, 46454), (9548, 23227)]