21357406

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4723}}^1$

素因数の和:4768

約数の個数: 32

約数和(自身を含む): 40815360

約数和(自身を除く): 19457954

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4522, 4723, 9446, 33061, 66122, 80291, 89737, 160582, 179474, 562037, 628159, 1124074, 1256318, 1525529, 3051058, 10678703, 21357406]

約数ペア:

[(1, 21357406), (2, 10678703), (7, 3051058), (14, 1525529), (17, 1256318), (19, 1124074), (34, 628159), (38, 562037), (119, 179474), (133, 160582), (238, 89737), (266, 80291), (323, 66122), (646, 33061), (2261, 9446), (4522, 4723)]