19887076

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2417}}^1$

素因数の和:2460

約数の個数: 36

約数和(自身を含む): 40520844

約数和(自身を除く): 20633768

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 242, 374, 484, 748, 2057, 2417, 4114, 4834, 8228, 9668, 26587, 41089, 53174, 82178, 106348, 164356, 292457, 451979, 584914, 903958, 1169828, 1807916, 4971769, 9943538, 19887076]

約数ペア:

[(1, 19887076), (2, 9943538), (4, 4971769), (11, 1807916), (17, 1169828), (22, 903958), (34, 584914), (44, 451979), (68, 292457), (121, 164356), (187, 106348), (242, 82178), (374, 53174), (484, 41089), (748, 26587), (2057, 9668), (2417, 8228), (4114, 4834)]