20357103

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 30553600

約数和(自身を除く): 10196497

約数列:

[1, 3, 13, 39, 43, 61, 129, 183, 199, 559, 597, 793, 1677, 2379, 2587, 2623, 7761, 7869, 8557, 12139, 25671, 34099, 36417, 102297, 111241, 157807, 333723, 473421, 521977, 1565931, 6785701, 20357103]

約数ペア:

[(1, 20357103), (3, 6785701), (13, 1565931), (39, 521977), (43, 473421), (61, 333723), (129, 157807), (183, 111241), (199, 102297), (559, 36417), (597, 34099), (793, 25671), (1677, 12139), (2379, 8557), (2587, 7869), (2623, 7761)]