21158072

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1553}}^1$

素因数の和:1703

約数の個数: 32

約数和(自身を含む): 43076880

約数和(自身を除く): 21918808

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 262, 524, 1048, 1553, 1703, 3106, 3406, 6212, 6812, 12424, 13624, 20189, 40378, 80756, 161512, 203443, 406886, 813772, 1627544, 2644759, 5289518, 10579036, 21158072]

約数ペア:

[(1, 21158072), (2, 10579036), (4, 5289518), (8, 2644759), (13, 1627544), (26, 813772), (52, 406886), (104, 203443), (131, 161512), (262, 80756), (524, 40378), (1048, 20189), (1553, 13624), (1703, 12424), (3106, 6812), (3406, 6212)]