21812428

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 44640288

約数和(自身を除く): 22827860

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 241, 242, 374, 482, 484, 748, 964, 1331, 2057, 2651, 2662, 4097, 4114, 5302, 5324, 8194, 8228, 10604, 16388, 22627, 29161, 45067, 45254, 58322, 90134, 90508, 116644, 180268, 320771, 495737, 641542, 991474, 1283084, 1982948, 5453107, 10906214, 21812428]

約数ペア:

[(1, 21812428), (2, 10906214), (4, 5453107), (11, 1982948), (17, 1283084), (22, 991474), (34, 641542), (44, 495737), (68, 320771), (121, 180268), (187, 116644), (241, 90508), (242, 90134), (374, 58322), (482, 45254), (484, 45067), (748, 29161), (964, 22627), (1331, 16388), (2057, 10604), (2651, 8228), (2662, 8194), (4097, 5324), (4114, 5302)]