21263223

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7937}}^1$

素因数の和:8006

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9218697

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7937, 23811, 150803, 373039, 452409, 1119117, 7087741, 21263223]

約数ペア:

[(1, 21263223), (3, 7087741), (19, 1119117), (47, 452409), (57, 373039), (141, 150803), (893, 23811), (2679, 7937)]