19404405

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7069}}^1$

素因数の和:7141

約数の個数: 24

約数和(自身を含む): 34190520

約数和(自身を除く): 14786115

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 7069, 21207, 35345, 63621, 106035, 318105, 431209, 1293627, 2156045, 3880881, 6468135, 19404405]

約数ペア:

[(1, 19404405), (3, 6468135), (5, 3880881), (9, 2156045), (15, 1293627), (45, 431209), (61, 318105), (183, 106035), (305, 63621), (549, 35345), (915, 21207), (2745, 7069)]