20996254

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1\times {\mathrm{821}}^1$

素因数の和:1515

約数の個数: 16

約数和(自身を含む): 33241680

約数和(自身を除く): 12245426

約数列:

[1, 2, 19, 38, 673, 821, 1346, 1642, 12787, 15599, 25574, 31198, 552533, 1105066, 10498127, 20996254]

約数ペア:

[(1, 20996254), (2, 10498127), (19, 1105066), (38, 552533), (673, 31198), (821, 25574), (1346, 15599), (1642, 12787)]