21012618

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 46807488

約数和(自身を除く): 25794870

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 103, 121, 206, 242, 281, 309, 363, 562, 618, 726, 843, 1133, 1686, 2266, 3091, 3399, 6182, 6798, 9273, 12463, 18546, 24926, 28943, 34001, 37389, 57886, 68002, 74778, 86829, 102003, 173658, 204006, 318373, 636746, 955119, 1910238, 3502103, 7004206, 10506309, 21012618]

約数ペア:

[(1, 21012618), (2, 10506309), (3, 7004206), (6, 3502103), (11, 1910238), (22, 955119), (33, 636746), (66, 318373), (103, 204006), (121, 173658), (206, 102003), (242, 86829), (281, 74778), (309, 68002), (363, 57886), (562, 37389), (618, 34001), (726, 28943), (843, 24926), (1133, 18546), (1686, 12463), (2266, 9273), (3091, 6798), (3399, 6182)]