20861907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 32949504

約数和(自身を除く): 12087597

約数列:

[1, 3, 11, 17, 33, 41, 51, 123, 187, 451, 561, 697, 907, 1353, 2091, 2721, 7667, 9977, 15419, 23001, 29931, 37187, 46257, 111561, 169609, 409057, 508827, 632179, 1227171, 1896537, 6953969, 20861907]

約数ペア:

[(1, 20861907), (3, 6953969), (11, 1896537), (17, 1227171), (33, 632179), (41, 508827), (51, 409057), (123, 169609), (187, 111561), (451, 46257), (561, 37187), (697, 29931), (907, 23001), (1353, 15419), (2091, 9977), (2721, 7667)]