31489213

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 38988000

約数和(自身を除く): 7498787

約数列:

[1, 7, 19, 49, 133, 149, 227, 931, 1043, 1589, 2831, 4313, 7301, 11123, 19817, 30191, 33823, 138719, 211337, 236761, 642637, 1657327, 4498459, 31489213]

約数ペア:

[(1, 31489213), (7, 4498459), (19, 1657327), (49, 642637), (133, 236761), (149, 211337), (227, 138719), (931, 33823), (1043, 30191), (1589, 19817), (2831, 11123), (4313, 7301)]