20421998

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 34590240

約数和(自身を除く): 14168242

約数列:

[1, 2, 17, 19, 34, 38, 101, 202, 313, 323, 626, 646, 1717, 1919, 3434, 3838, 5321, 5947, 10642, 11894, 31613, 32623, 63226, 65246, 101099, 202198, 537421, 600647, 1074842, 1201294, 10210999, 20421998]

約数ペア:

[(1, 20421998), (2, 10210999), (17, 1201294), (19, 1074842), (34, 600647), (38, 537421), (101, 202198), (202, 101099), (313, 65246), (323, 63226), (626, 32623), (646, 31613), (1717, 11894), (1919, 10642), (3434, 5947), (3838, 5321)]