21000888051

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{475273}}^1$

素因数の和:475403

約数の個数: 32

約数和(自身を含む): 33215949312

約数和(自身を除く): 12215061261

約数列:

[1, 3, 11, 13, 33, 39, 103, 143, 309, 429, 1133, 1339, 3399, 4017, 14729, 44187, 475273, 1425819, 5228003, 6178549, 15684009, 18535647, 48953119, 67964039, 146859357, 203892117, 538484309, 636390547, 1615452927, 1909171641, 7000296017, 21000888051]

約数ペア:

[(1, 21000888051), (3, 7000296017), (11, 1909171641), (13, 1615452927), (33, 636390547), (39, 538484309), (103, 203892117), (143, 146859357), (309, 67964039), (429, 48953119), (1133, 18535647), (1339, 15684009), (3399, 6178549), (4017, 5228003), (14729, 1425819), (44187, 475273)]