20914218

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:803

約数の個数: 48

約数和(自身を含む): 49227360

約数和(自身を除く): 28313142

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 139, 234, 278, 417, 643, 834, 1251, 1286, 1807, 1929, 2502, 3614, 3858, 5421, 5787, 8359, 10842, 11574, 16263, 16718, 25077, 32526, 50154, 75231, 89377, 150462, 178754, 268131, 536262, 804393, 1161901, 1608786, 2323802, 3485703, 6971406, 10457109, 20914218]

約数ペア:

[(1, 20914218), (2, 10457109), (3, 6971406), (6, 3485703), (9, 2323802), (13, 1608786), (18, 1161901), (26, 804393), (39, 536262), (78, 268131), (117, 178754), (139, 150462), (234, 89377), (278, 75231), (417, 50154), (643, 32526), (834, 25077), (1251, 16718), (1286, 16263), (1807, 11574), (1929, 10842), (2502, 8359), (3614, 5787), (3858, 5421)]