21303142

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 41491440

約数和(自身を除く): 20188298

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 49, 98, 119, 133, 238, 266, 323, 646, 673, 833, 931, 1346, 1666, 1862, 2261, 4522, 4711, 9422, 11441, 12787, 15827, 22882, 25574, 31654, 32977, 65954, 80087, 89509, 160174, 179018, 217379, 434758, 560609, 626563, 1121218, 1253126, 1521653, 3043306, 10651571, 21303142]

約数ペア:

[(1, 21303142), (2, 10651571), (7, 3043306), (14, 1521653), (17, 1253126), (19, 1121218), (34, 626563), (38, 560609), (49, 434758), (98, 217379), (119, 179018), (133, 160174), (238, 89509), (266, 80087), (323, 65954), (646, 32977), (673, 31654), (833, 25574), (931, 22882), (1346, 15827), (1666, 12787), (1862, 11441), (2261, 9422), (4522, 4711)]