21774165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1583}}^1$

素因数の和:1729

約数の個数: 32

約数和(自身を含む): 40144896

約数和(自身を除く): 18370731

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1583, 1965, 2751, 4585, 4749, 7915, 11081, 13755, 23745, 33243, 55405, 166215, 207373, 622119, 1036865, 1451611, 3110595, 4354833, 7258055, 21774165]

約数ペア:

[(1, 21774165), (3, 7258055), (5, 4354833), (7, 3110595), (15, 1451611), (21, 1036865), (35, 622119), (105, 207373), (131, 166215), (393, 55405), (655, 33243), (917, 23745), (1583, 13755), (1965, 11081), (2751, 7915), (4585, 4749)]