21573398

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 64

約数和(自身を含む): 43476480

約数和(自身を除く): 21903082

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 73, 77, 101, 133, 146, 154, 202, 209, 266, 418, 511, 707, 803, 1022, 1111, 1387, 1414, 1463, 1606, 1919, 2222, 2774, 2926, 3838, 5621, 7373, 7777, 9709, 11242, 13433, 14746, 15257, 15554, 19418, 21109, 26866, 30514, 42218, 51611, 81103, 103222, 106799, 140087, 147763, 162206, 213598, 280174, 295526, 567721, 980609, 1135442, 1540957, 1961218, 3081914, 10786699, 21573398]

約数ペア:

[(1, 21573398), (2, 10786699), (7, 3081914), (11, 1961218), (14, 1540957), (19, 1135442), (22, 980609), (38, 567721), (73, 295526), (77, 280174), (101, 213598), (133, 162206), (146, 147763), (154, 140087), (202, 106799), (209, 103222), (266, 81103), (418, 51611), (511, 42218), (707, 30514), (803, 26866), (1022, 21109), (1111, 19418), (1387, 15554), (1414, 15257), (1463, 14746), (1606, 13433), (1919, 11242), (2222, 9709), (2774, 7777), (2926, 7373), (3838, 5621)]