2172005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1$

素因数の和:157

約数の個数: 32

約数和(自身を含む): 3172608

約数和(自身を除く): 1000603

約数列:

[1, 5, 11, 17, 23, 55, 85, 101, 115, 187, 253, 391, 505, 935, 1111, 1265, 1717, 1955, 2323, 4301, 5555, 8585, 11615, 18887, 21505, 25553, 39491, 94435, 127765, 197455, 434401, 2172005]

約数ペア:

[(1, 2172005), (5, 434401), (11, 197455), (17, 127765), (23, 94435), (55, 39491), (85, 25553), (101, 21505), (115, 18887), (187, 11615), (253, 8585), (391, 5555), (505, 4301), (935, 2323), (1111, 1955), (1265, 1717)]