20449149

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{967}}^1$

素因数の和:1049

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 13004931

約数列:

[1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 967, 1007, 1113, 2901, 3021, 6769, 7049, 18373, 20307, 21147, 51251, 55119, 128611, 153753, 358757, 385833, 973769, 1076271, 2921307, 6816383, 20449149]

約数ペア:

[(1, 20449149), (3, 6816383), (7, 2921307), (19, 1076271), (21, 973769), (53, 385833), (57, 358757), (133, 153753), (159, 128611), (371, 55119), (399, 51251), (967, 21147), (1007, 20307), (1113, 18373), (2901, 7049), (3021, 6769)]