21533085

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{347}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 42996096

約数和(自身を除く): 21463011

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 197, 315, 347, 591, 985, 1041, 1379, 1735, 1773, 2429, 2955, 3123, 4137, 5205, 6895, 7287, 8865, 12145, 12411, 15615, 20685, 21861, 36435, 62055, 68359, 109305, 205077, 341795, 478513, 615231, 1025385, 1435539, 2392565, 3076155, 4306617, 7177695, 21533085]

約数ペア:

[(1, 21533085), (3, 7177695), (5, 4306617), (7, 3076155), (9, 2392565), (15, 1435539), (21, 1025385), (35, 615231), (45, 478513), (63, 341795), (105, 205077), (197, 109305), (315, 68359), (347, 62055), (591, 36435), (985, 21861), (1041, 20685), (1379, 15615), (1735, 12411), (1773, 12145), (2429, 8865), (2955, 7287), (3123, 6895), (4137, 5205)]