19880433

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{263}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 29734848

約数和(自身を除く): 9854415

約数列:

[1, 3, 9, 37, 111, 227, 263, 333, 681, 789, 2043, 2367, 8399, 9731, 25197, 29193, 59701, 75591, 87579, 179103, 537309, 2208937, 6626811, 19880433]

約数ペア:

[(1, 19880433), (3, 6626811), (9, 2208937), (37, 537309), (111, 179103), (227, 87579), (263, 75591), (333, 59701), (681, 29193), (789, 25197), (2043, 9731), (2367, 8399)]