20402595

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3461}}^1$

素因数の和:3603

約数の個数: 24

約数和(自身を含む): 35644752

約数和(自身を除く): 15242157

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 3461, 5895, 10383, 17305, 31149, 51915, 155745, 453391, 1360173, 2266955, 4080519, 6800865, 20402595]

約数ペア:

[(1, 20402595), (3, 6800865), (5, 4080519), (9, 2266955), (15, 1360173), (45, 453391), (131, 155745), (393, 51915), (655, 31149), (1179, 17305), (1965, 10383), (3461, 5895)]