21670755

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 35900928

約数和(自身を除く): 14230173

約数列:

[1, 3, 5, 15, 41, 123, 167, 205, 211, 501, 615, 633, 835, 1055, 2505, 3165, 6847, 8651, 20541, 25953, 34235, 35237, 43255, 102705, 105711, 129765, 176185, 528555, 1444717, 4334151, 7223585, 21670755]

約数ペア:

[(1, 21670755), (3, 7223585), (5, 4334151), (15, 1444717), (41, 528555), (123, 176185), (167, 129765), (205, 105711), (211, 102705), (501, 43255), (615, 35237), (633, 34235), (835, 25953), (1055, 20541), (2505, 8651), (3165, 6847)]