20161280757

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{4451}}^1$

素因数の和:4833

約数の個数: 32

約数和(自身を含む): 27686453760

約数和(自身を除く): 7525173003

約数列:

[1, 3, 59, 157, 163, 177, 471, 489, 4451, 9263, 9617, 13353, 25591, 27789, 28851, 76773, 262609, 698807, 725513, 787827, 1509869, 2096421, 2176539, 4529607, 41229613, 42805267, 113905541, 123688839, 128415801, 341716623, 6720426919, 20161280757]

約数ペア:

[(1, 20161280757), (3, 6720426919), (59, 341716623), (157, 128415801), (163, 123688839), (177, 113905541), (471, 42805267), (489, 41229613), (4451, 4529607), (9263, 2176539), (9617, 2096421), (13353, 1509869), (25591, 787827), (27789, 725513), (28851, 698807), (76773, 262609)]