21485115

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2609}}^1$

素因数の和:2684

約数の個数: 32

約数和(自身を含む): 38836800

約数和(自身を除く): 17351685

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2609, 2745, 7827, 8235, 13045, 23481, 39135, 70443, 117405, 159149, 352215, 477447, 795745, 1432341, 2387235, 4297023, 7161705, 21485115]

約数ペア:

[(1, 21485115), (3, 7161705), (5, 4297023), (9, 2387235), (15, 1432341), (27, 795745), (45, 477447), (61, 352215), (135, 159149), (183, 117405), (305, 70443), (549, 39135), (915, 23481), (1647, 13045), (2609, 8235), (2745, 7827)]