21143289604

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1318489}}^1$

素因数の和:1318723

約数の個数: 24

約数和(自身を含む): 39132783200

約数和(自身を除く): 17989493596

約数列:

[1, 2, 4, 19, 38, 76, 211, 422, 844, 4009, 8018, 16036, 1318489, 2636978, 5273956, 25051291, 50102582, 100205164, 278201179, 556402358, 1112804716, 5285822401, 10571644802, 21143289604]

約数ペア:

[(1, 21143289604), (2, 10571644802), (4, 5285822401), (19, 1112804716), (38, 556402358), (76, 278201179), (211, 100205164), (422, 50102582), (844, 25051291), (4009, 5273956), (8018, 2636978), (16036, 1318489)]