221427987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1\times {\mathrm{347}}^1$

素因数の和:739

約数の個数: 32

約数和(自身を含む): 329336064

約数和(自身を除く): 107908077

約数列:

[1, 3, 11, 33, 61, 183, 317, 347, 671, 951, 1041, 2013, 3487, 3817, 10461, 11451, 19337, 21167, 58011, 63501, 109999, 212707, 232837, 329997, 638121, 698511, 1209989, 3629967, 6709939, 20129817, 73809329, 221427987]

約数ペア:

[(1, 221427987), (3, 73809329), (11, 20129817), (33, 6709939), (61, 3629967), (183, 1209989), (317, 698511), (347, 638121), (671, 329997), (951, 232837), (1041, 212707), (2013, 109999), (3487, 63501), (3817, 58011), (10461, 21167), (11451, 19337)]