21620955

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{709}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 36806400

約数和(自身を除く): 15185445

約数列:

[1, 3, 5, 15, 19, 57, 95, 107, 285, 321, 535, 709, 1605, 2033, 2127, 3545, 6099, 10165, 10635, 13471, 30495, 40413, 67355, 75863, 202065, 227589, 379315, 1137945, 1441397, 4324191, 7206985, 21620955]

約数ペア:

[(1, 21620955), (3, 7206985), (5, 4324191), (15, 1441397), (19, 1137945), (57, 379315), (95, 227589), (107, 202065), (285, 75863), (321, 67355), (535, 40413), (709, 30495), (1605, 13471), (2033, 10635), (2127, 10165), (3545, 6099)]