20314294

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 41771520

約数和(自身を除く): 21457226

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 73, 77, 91, 139, 143, 146, 154, 182, 278, 286, 511, 803, 949, 973, 1001, 1022, 1529, 1606, 1807, 1898, 1946, 2002, 3058, 3614, 5621, 6643, 10147, 10439, 10703, 11242, 12649, 13286, 19877, 20294, 20878, 21406, 25298, 39754, 71029, 73073, 111617, 131911, 139139, 142058, 146146, 223234, 263822, 278278, 781319, 923377, 1451021, 1562638, 1846754, 2902042, 10157147, 20314294]

約数ペア:

[(1, 20314294), (2, 10157147), (7, 2902042), (11, 1846754), (13, 1562638), (14, 1451021), (22, 923377), (26, 781319), (73, 278278), (77, 263822), (91, 223234), (139, 146146), (143, 142058), (146, 139139), (154, 131911), (182, 111617), (278, 73073), (286, 71029), (511, 39754), (803, 25298), (949, 21406), (973, 20878), (1001, 20294), (1022, 19877), (1529, 13286), (1606, 12649), (1807, 11242), (1898, 10703), (1946, 10439), (2002, 10147), (3058, 6643), (3614, 5621)]