19451828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{59}}^2\times {\mathrm{127}}^1$

素因数の和:260

約数の個数: 36

約数和(自身を含む): 38072832

約数和(自身を除く): 18621004

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 127, 236, 254, 508, 649, 1298, 1397, 2596, 2794, 3481, 5588, 6962, 7493, 13924, 14986, 29972, 38291, 76582, 82423, 153164, 164846, 329692, 442087, 884174, 1768348, 4862957, 9725914, 19451828]

約数ペア:

[(1, 19451828), (2, 9725914), (4, 4862957), (11, 1768348), (22, 884174), (44, 442087), (59, 329692), (118, 164846), (127, 153164), (236, 82423), (254, 76582), (508, 38291), (649, 29972), (1298, 14986), (1397, 13924), (2596, 7493), (2794, 6962), (3481, 5588)]