207985687

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 262563840

約数和(自身を除く): 54578153

約数列:

[1, 7, 13, 73, 91, 131, 239, 511, 917, 949, 1673, 1703, 3107, 6643, 9563, 11921, 17447, 21749, 31309, 66941, 122129, 124319, 219163, 226811, 407017, 870233, 1587677, 2285557, 2849119, 15998899, 29712241, 207985687]

約数ペア:

[(1, 207985687), (7, 29712241), (13, 15998899), (73, 2849119), (91, 2285557), (131, 1587677), (239, 870233), (511, 407017), (917, 226811), (949, 219163), (1673, 124319), (1703, 122129), (3107, 66941), (6643, 31309), (9563, 21749), (11921, 17447)]