20494299

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 13979301

約数列:

[1, 3, 7, 17, 21, 49, 51, 59, 119, 139, 147, 177, 357, 413, 417, 833, 973, 1003, 1239, 2363, 2499, 2891, 2919, 3009, 6811, 7021, 7089, 8201, 8673, 16541, 20433, 21063, 24603, 49147, 49623, 57407, 115787, 139417, 147441, 172221, 347361, 401849, 418251, 975919, 1205547, 2927757, 6831433, 20494299]

約数ペア:

[(1, 20494299), (3, 6831433), (7, 2927757), (17, 1205547), (21, 975919), (49, 418251), (51, 401849), (59, 347361), (119, 172221), (139, 147441), (147, 139417), (177, 115787), (357, 57407), (413, 49623), (417, 49147), (833, 24603), (973, 21063), (1003, 20433), (1239, 16541), (2363, 8673), (2499, 8201), (2891, 7089), (2919, 7021), (3009, 6811)]