19722968

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 38223360

約数和(自身を除く): 18500392

約数列:

[1, 2, 4, 8, 41, 82, 157, 164, 314, 328, 383, 628, 766, 1256, 1532, 3064, 6437, 12874, 15703, 25748, 31406, 51496, 60131, 62812, 120262, 125624, 240524, 481048, 2465371, 4930742, 9861484, 19722968]

約数ペア:

[(1, 19722968), (2, 9861484), (4, 4930742), (8, 2465371), (41, 481048), (82, 240524), (157, 125624), (164, 120262), (314, 62812), (328, 60131), (383, 51496), (628, 31406), (766, 25748), (1256, 15703), (1532, 12874), (3064, 6437)]