21000598844

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{309433}}^1$

素因数の和:309522

約数の個数: 36

約数和(自身を含む): 39612502944

約数和(自身を除く): 18611904100

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 361, 722, 893, 1444, 1786, 3572, 16967, 33934, 67868, 309433, 618866, 1237732, 5879227, 11758454, 14543351, 23516908, 29086702, 58173404, 111705313, 223410626, 276323669, 446821252, 552647338, 1105294676, 5250149711, 10500299422, 21000598844]

約数ペア:

[(1, 21000598844), (2, 10500299422), (4, 5250149711), (19, 1105294676), (38, 552647338), (47, 446821252), (76, 276323669), (94, 223410626), (188, 111705313), (361, 58173404), (722, 29086702), (893, 23516908), (1444, 14543351), (1786, 11758454), (3572, 5879227), (16967, 1237732), (33934, 618866), (67868, 309433)]