20669704

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 43187760

約数和(自身を除く): 22518056

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 131, 163, 242, 262, 326, 484, 524, 652, 968, 1048, 1304, 1441, 1793, 2882, 3586, 5764, 7172, 11528, 14344, 15851, 19723, 21353, 31702, 39446, 42706, 63404, 78892, 85412, 126808, 157784, 170824, 234883, 469766, 939532, 1879064, 2583713, 5167426, 10334852, 20669704]

約数ペア:

[(1, 20669704), (2, 10334852), (4, 5167426), (8, 2583713), (11, 1879064), (22, 939532), (44, 469766), (88, 234883), (121, 170824), (131, 157784), (163, 126808), (242, 85412), (262, 78892), (326, 63404), (484, 42706), (524, 39446), (652, 31702), (968, 21353), (1048, 19723), (1304, 15851), (1441, 14344), (1793, 11528), (2882, 7172), (3586, 5764)]