64821645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{205783}}^1$

素因数の和:205801

約数の個数: 24

約数和(自身を含む): 128409216

約数和(自身を除く): 63587571

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 205783, 617349, 1028915, 1440481, 1852047, 3086745, 4321443, 7202405, 9260235, 12964329, 21607215, 64821645]

約数ペア:

[(1, 64821645), (3, 21607215), (5, 12964329), (7, 9260235), (9, 7202405), (15, 4321443), (21, 3086745), (35, 1852047), (45, 1440481), (63, 1028915), (105, 617349), (315, 205783)]