21357045

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24979}}^1$

素因数の和:25009

約数の個数: 24

約数和(自身を含む): 38968800

約数和(自身を除く): 17611755

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 24979, 74937, 124895, 224811, 374685, 474601, 1124055, 1423803, 2373005, 4271409, 7119015, 21357045]

約数ペア:

[(1, 21357045), (3, 7119015), (5, 4271409), (9, 2373005), (15, 1423803), (19, 1124055), (45, 474601), (57, 374685), (95, 224811), (171, 124895), (285, 74937), (855, 24979)]