20557772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{3259}}^1$

素因数の和:3365

約数の個数: 24

約数和(自身を含む): 38337600

約数和(自身を除く): 17779828

約数列:

[1, 2, 4, 19, 38, 76, 83, 166, 332, 1577, 3154, 3259, 6308, 6518, 13036, 61921, 123842, 247684, 270497, 540994, 1081988, 5139443, 10278886, 20557772]

約数ペア:

[(1, 20557772), (2, 10278886), (4, 5139443), (19, 1081988), (38, 540994), (76, 270497), (83, 247684), (166, 123842), (332, 61921), (1577, 13036), (3154, 6518), (3259, 6308)]