20707956

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{4391}}^1$

素因数の和:4532

約数の個数: 36

約数和(自身を含む): 52756704

約数和(自身を除く): 32048748

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 393, 524, 786, 1179, 1572, 2358, 4391, 4716, 8782, 13173, 17564, 26346, 39519, 52692, 79038, 158076, 575221, 1150442, 1725663, 2300884, 3451326, 5176989, 6902652, 10353978, 20707956]

約数ペア:

[(1, 20707956), (2, 10353978), (3, 6902652), (4, 5176989), (6, 3451326), (9, 2300884), (12, 1725663), (18, 1150442), (36, 575221), (131, 158076), (262, 79038), (393, 52692), (524, 39519), (786, 26346), (1179, 17564), (1572, 13173), (2358, 8782), (4391, 4716)]