19971405

素因数分解:

$3^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1171}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 34738080

約数和(自身を除く): 14766675

約数列:

[1, 3, 5, 9, 15, 45, 379, 1137, 1171, 1895, 3411, 3513, 5685, 5855, 10539, 17055, 17565, 52695, 443809, 1331427, 2219045, 3994281, 6657135, 19971405]

約数ペア:

[(1, 19971405), (3, 6657135), (5, 3994281), (9, 2219045), (15, 1331427), (45, 443809), (379, 52695), (1137, 17565), (1171, 17055), (1895, 10539), (3411, 5855), (3513, 5685)]