20837938

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^2\times {\mathrm{211}}^1$

素因数の和:358

約数の個数: 24

約数和(自身を含む): 34779024

約数和(自身を除く): 13941086

約数列:

[1, 2, 11, 22, 67, 134, 211, 422, 737, 1474, 2321, 4489, 4642, 8978, 14137, 28274, 49379, 98758, 155507, 311014, 947179, 1894358, 10418969, 20837938]

約数ペア:

[(1, 20837938), (2, 10418969), (11, 1894358), (22, 947179), (67, 311014), (134, 155507), (211, 98758), (422, 49379), (737, 28274), (1474, 14137), (2321, 8978), (4489, 4642)]