20949191997

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{15451}}^1$

素因数の和:15785

約数の個数: 32

約数和(自身を含む): 29430497280

約数和(自身を除く): 8481305283

約数列:

[1, 3, 31, 61, 93, 183, 239, 717, 1891, 5673, 7409, 14579, 15451, 22227, 43737, 46353, 451949, 478981, 942511, 1355847, 1436943, 2827533, 3692789, 11078367, 29217841, 87653523, 114476459, 225260129, 343429377, 675780387, 6983063999, 20949191997]

約数ペア:

[(1, 20949191997), (3, 6983063999), (31, 675780387), (61, 343429377), (93, 225260129), (183, 114476459), (239, 87653523), (717, 29217841), (1891, 11078367), (5673, 3692789), (7409, 2827533), (14579, 1436943), (15451, 1355847), (22227, 942511), (43737, 478981), (46353, 451949)]