21809556

素因数分解:

$2^2\times 3^2\times {\mathrm{683}}^1\times {\mathrm{887}}^1$

素因数の和:1580

約数の個数: 36

約数和(自身を含む): 55272672

約数和(自身を除く): 33463116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 683, 887, 1366, 1774, 2049, 2661, 2732, 3548, 4098, 5322, 6147, 7983, 8196, 10644, 12294, 15966, 24588, 31932, 605821, 1211642, 1817463, 2423284, 3634926, 5452389, 7269852, 10904778, 21809556]

約数ペア:

[(1, 21809556), (2, 10904778), (3, 7269852), (4, 5452389), (6, 3634926), (9, 2423284), (12, 1817463), (18, 1211642), (36, 605821), (683, 31932), (887, 24588), (1366, 15966), (1774, 12294), (2049, 10644), (2661, 8196), (2732, 7983), (3548, 6147), (4098, 5322)]