20941660

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7993}}^1$

素因数の和:8133

約数の個数: 24

約数和(自身を含む): 44318736

約数和(自身を除く): 23377076

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7993, 15986, 31972, 39965, 79930, 159860, 1047083, 2094166, 4188332, 5235415, 10470830, 20941660]

約数ペア:

[(1, 20941660), (2, 10470830), (4, 5235415), (5, 4188332), (10, 2094166), (20, 1047083), (131, 159860), (262, 79930), (524, 39965), (655, 31972), (1310, 15986), (2620, 7993)]