20984690

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^2$

素因数の和:574

約数の個数: 24

約数和(自身を含む): 39220740

約数和(自身を除く): 18236050

約数列:

[1, 2, 5, 10, 29, 58, 145, 269, 290, 538, 1345, 2690, 7801, 15602, 39005, 72361, 78010, 144722, 361805, 723610, 2098469, 4196938, 10492345, 20984690]

約数ペア:

[(1, 20984690), (2, 10492345), (5, 4196938), (10, 2098469), (29, 723610), (58, 361805), (145, 144722), (269, 78010), (290, 72361), (538, 39005), (1345, 15602), (2690, 7801)]