21439278

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10009}}^1$

素因数の和:10041

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 34776882

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 306, 357, 714, 1071, 2142, 10009, 20018, 30027, 60054, 70063, 90081, 140126, 170153, 180162, 210189, 340306, 420378, 510459, 630567, 1020918, 1191071, 1261134, 1531377, 2382142, 3062754, 3573213, 7146426, 10719639, 21439278]

約数ペア:

[(1, 21439278), (2, 10719639), (3, 7146426), (6, 3573213), (7, 3062754), (9, 2382142), (14, 1531377), (17, 1261134), (18, 1191071), (21, 1020918), (34, 630567), (42, 510459), (51, 420378), (63, 340306), (102, 210189), (119, 180162), (126, 170153), (153, 140126), (238, 90081), (306, 70063), (357, 60054), (714, 30027), (1071, 20018), (2142, 10009)]