20642512

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6173}}^1$

素因数の和:6211

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 25292048

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6173, 12346, 24692, 49384, 67903, 98768, 117287, 135806, 234574, 271612, 469148, 543224, 938296, 1086448, 1290157, 1876592, 2580314, 5160628, 10321256, 20642512]

約数ペア:

[(1, 20642512), (2, 10321256), (4, 5160628), (8, 2580314), (11, 1876592), (16, 1290157), (19, 1086448), (22, 938296), (38, 543224), (44, 469148), (76, 271612), (88, 234574), (152, 135806), (176, 117287), (209, 98768), (304, 67903), (418, 49384), (836, 24692), (1672, 12346), (3344, 6173)]