21897132388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{7639}}^1\times {\mathrm{37717}}^1$

素因数の和:45379

約数の個数: 24

約数和(自身を含む): 40343172800

約数和(自身を除く): 18446040412

約数列:

[1, 2, 4, 19, 38, 76, 7639, 15278, 30556, 37717, 75434, 145141, 150868, 290282, 580564, 716623, 1433246, 2866492, 288120163, 576240326, 1152480652, 5474283097, 10948566194, 21897132388]

約数ペア:

[(1, 21897132388), (2, 10948566194), (4, 5474283097), (19, 1152480652), (38, 576240326), (76, 288120163), (7639, 2866492), (15278, 1433246), (30556, 716623), (37717, 580564), (75434, 290282), (145141, 150868)]